Free tool

LEGO Missing Piece Checker

Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

Micro Building Set

Checking

9324 Micro Building Set

1,657 pieces in 259 part and color combinations.

LEGO counts 1,641 pieces. This inventory comes from a separate parts catalog and lists 1,657; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

Show

Piece checklist

Bricks 507 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×30
  • Brick 1 x 2 Black Part 3004 Element 300426 ×25
  • Brick 1 x 4 Black Part 3010 Element 301026 ×4
  • Brick 2 x 2 Black Part 3003 Element 4103587 or 300326 ×6
  • Brick 2 x 3 Black Part 3002 Element 300226 ×2
  • Brick 2 x 4 Black Part 3001 Element 300126 ×1
  • Brick 1 x 2 Blue Part 3004 Element 4613959 or 300423 ×2
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×1
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×8
  • Brick 1 x 10 Light Bluish Gray Part 6111 Element 4211521 ×1
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×7
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×9
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×3
  • Brick 1 x 8 Light Bluish Gray Part 3008 Element 4211392 ×1
  • Brick 2 x 4 Light Bluish Gray Part 3001 Element 4211385 ×1
  • Brick 1 x 2 Orange Part 3004 Element 4613981 or 4121739 ×1
  • Brick 1 x 1 Red Part 3005 Element 300521 ×15
  • Brick 1 x 10 Red Part 6111 Element 611121 ×3
  • Brick 1 x 2 Red Part 3004 Element 4613961 or 300421 ×12
  • Brick 1 x 3 Red Part 3622 Element 362221 ×6
  • Brick 1 x 4 Red Part 3010 Element 301021 ×1
  • Brick 1 x 6 Red Part 3009 Element 300921 ×3
  • Brick 1 x 8 Red Part 3008 Element 300821 ×3
  • Brick 2 x 10 Red Part 3006 Element 4617857 or 300621 ×1
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×6
  • Brick 2 x 4 Red Part 3001 Element 300121 ×3
  • Brick 2 x 6 Red Part 2456 Element 4181138 or 245621 ×1
  • Brick 1 x 2 without Bottom Tube Trans-Clear Part 3065 Element 6514262 or 6244904 ×29
  • Brick 1 x 1 Trans-Dark Blue Part 3005 Element 6514215 or 6494117 ×18
  • Brick 1 x 2 without Bottom Tube Trans-Dark Blue Part 3065 Element 6514264 or 6244906 ×60
  • Brick 2 x 2 without Inside Ridges Trans-Dark Blue Part 6223 Element 6514091 or 6238043 ×4
  • Brick 1 x 2 without Bottom Tube Trans-Yellow Part 3065 Element 6514265 or 6244907 ×6
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×37
  • Brick 1 x 10 White Part 6111 Element 6619291 or 611101 ×8
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×96
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×16
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×8
  • Brick 1 x 6 White Part 3009 Element 6552097 or 6548259 ×10
  • Brick 1 x 8 White Part 3008 Element 6550134 or 300801 ×1
  • Brick 2 x 2 White Part 3003 Element 6552095 or 6548256 ×13
  • Brick 2 x 2 Corner White Part 2357 Element 6552088 or 6548253 ×9
  • Brick 2 x 3 White Part 3002 Element 6550133 or 300251 ×3
  • Brick 2 x 4 White Part 3001 Element 6552094 or 300101 ×10
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×8
  • Brick 1 x 1 Yellow Part 3005 Element 300524 ×9
  • Brick 1 x 2 Yellow Part 3004 Element 4613966 or 300424 ×4
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×2

Plates 219 pieces

  • Plate 1 x 10 Black Part 4477 Element 447726 ×2
  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 1 x 3 Black Part 3623 Element 362326 ×1
  • Plate 2 x 10 Black Part 3832 Element 383226 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 2 x 3 Black Part 3021 Element 302126 ×8
  • Plate 2 x 4 Black Part 3020 Element 302026 ×2
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate 1 x 2 Blue Part 3023 Element 302323 ×10
  • Plate 1 x 3 Blue Part 3623 Element 362323 ×2
  • Plate 1 x 4 Blue Part 3710 Element 371023 ×1
  • Plate 1 x 6 Blue Part 3666 Element 366623 ×5
  • Plate 1 x 8 Blue Part 3460 Element 346023 ×1
  • Plate 2 x 10 Blue Part 3832 Element 383223 ×1
  • Plate 2 x 2 Blue Part 3022 Element 4613973 or 302223 ×3
  • Plate 2 x 3 Blue Part 3021 Element 302123 ×3
  • Plate 2 x 4 Blue Part 3020 Element 4240375 or 302023 ×4
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×1
  • Plate 2 x 8 Blue Part 3034 Element 303423 ×2
  • Plate 4 x 4 Blue Part 3031 Element 4243815 or 303123 ×2
  • Plate 4 x 8 Blue Part 3035 Element 303523 ×1
  • Plate 6 x 8 Blue Part 3036 Element 303673 or 303623 ×4
  • Plate 1 x 2 Green Part 3023 Element 302328 ×19
  • Plate 2 x 3 Green Part 3021 Element 302128 ×4
  • Plate 2 x 4 Green Part 3020 Element 302028 ×3
  • Plate 2 x 6 Green Part 3795 Element 379528 ×1
  • Plate 2 x 8 Green Part 3034 Element 303428 ×6
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 ×3
  • Plate 1 x 10 Light Bluish Gray Part 4477 Element 4251149 or 4211495 ×1
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×7
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×3
  • Plate 1 x 6 Light Bluish Gray Part 3666 Element 4211438 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×1
  • Plate 4 x 12 Light Bluish Gray Part 3029 Element 4211401 ×2
  • Plate 1 x 2 Red Part 3023 Element 302321 ×3
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 2 x 10 Red Part 3832 Element 383221 ×1
  • Plate 2 x 2 Red Part 3022 Element 4613974 or 302221 ×3
  • Plate 2 x 3 Red Part 3021 Element 302121 ×3
  • Plate 2 x 4 Red Part 3020 Element 302021 ×1
  • Plate 2 x 8 Red Part 3034 Element 303421 ×1
  • Plate 4 x 8 Red Part 3035 Element 303521 ×2
  • Plate 1 x 2 Trans-Clear Part 3023 Element 6514001 or 6240204 Also in White ×2
  • Plate 1 x 10 White Part 4477 Element 6552113 or 6550148 ×10
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 Also in Trans-Clear ×15
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×14
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×4
  • Plate 2 x 10 White Part 3832 Element 6552109 or 383201 ×2
  • Plate 2 x 2 White Part 3022 Element 6552099 or 6548260 ×6
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×9
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×8
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×9
  • Plate 1 x 4 Yellow Part 3710 Element 371024 ×1
  • Plate 1 x 6 Yellow Part 3666 Element 366624 ×1
  • Plate 1 x 8 Yellow Part 3460 Element 346024 ×4
  • Plate 2 x 2 Yellow Part 3022 Element 4613978 or 302224 ×2
  • Plate 2 x 3 Yellow Part 3021 Element 302124 ×2

Plates Round Curved and Dishes 188 pieces

  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 ×34
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Black Part 4032a Element 403226 ×8
  • Plate Round 1 x 1 with Solid Stud Blue Part 6141 Element 614123 ×6
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Light Bluish Gray Part 4032a Element 4211475 ×3
  • Plate Round 1 x 1 with Solid Stud Lime Part 6141 Element 4183133 ×8
  • Plate Round 1 x 1 with Solid Stud Red Part 6141 Element 614121 Also in Trans-Red ×10
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Red Part 4032a Element 403221 ×7
  • Plate Round 1 x 1 with Solid Stud Trans-Dark Blue Part 6141 Element 6514055 or 6240214 ×18
  • Plate Round 1 x 1 with Solid Stud Trans-Green Part 6141 Element 6514057 or 6240221 ×2
  • Dish 2 x 2 Inverted [Radar] Trans-Neon Green Part 4740 Element 6245297 or 4112517 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Orange Part 6141 Element 6514059 or 6240227 ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Red Part 6141 Element 6514051 or 6208450 Also in Red ×14
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 Also in Yellow ×18
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 ×13
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×3
  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 Also in Trans-Yellow ×38
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Yellow Part 4032a Element 403224 ×1

Bricks Sloped 180 pieces

  • Brick Sloped 33° 3 x 3 Black Part 4161 Element 416126 ×9
  • Brick Sloped 45° 2 x 1 Triple with Ovoid Bottom Pin Black Part 3048c Element 304826 ×9
  • Brick Sloped 45° 2 x 2 Black Part 3039 Element 303926 ×2
  • Brick Sloped 45° 2 x 2 Double Black Part 3043 Element 4163373 or 304326 ×1
  • Brick Sloped 45° 2 x 4 Double Black Part 3041 Element 4189063 or 304126 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin Black Part 3747b Element 4500458 or 374726 ×4
  • Brick Sloped 33° 3 x 2 Blue Part 3298 Element 6294307 or 6141996 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Green Part 3040b Element 4121969 or 4109668 ×42
  • Brick Sloped Inverted 45° 2 x 1 Green Part 3665 Element 4142989 or 4119659 ×34
  • Brick Sloped 45° 2 x 1 with Bottom Pin Light Bluish Gray Part 3040b Element 4211614 ×6
  • Brick Sloped 33° 2 x 4 Double Red Part 3299 Element 329921 ×1
  • Brick Sloped 33° 3 x 2 Red Part 3298 Element 329821 ×4
  • Brick Sloped 33° 3 x 4 Red Part 3297 Element 329721 ×4
  • Brick Sloped 45° 2 x 1 with Bottom Pin Red Part 3040b Element 4121934 or 304021 ×1
  • Brick Sloped 45° 2 x 2 Red Part 3039 Element 303921 ×4
  • Brick Sloped 45° 2 x 2 Double Red Part 3043 Element 304321 ×4
  • Brick Sloped 45° 2 x 4 Red Part 3037 Element 303721 ×8
  • Brick Sloped 45° 2 x 4 Double Red Part 3041 Element 4144003 or 304121 ×2
  • Brick Sloped 45° 2 x 2 Trans-Clear Part 3039 Element 6514100 or 6244886 Also in White ×5
  • Brick Sloped 45° 2 x 1 with Bottom Pin Trans-Dark Blue Part 3040b Element 4109710 ×10
  • Brick Sloped 45° 2 x 2 Trans-Dark Blue Part 3039 Element 6514101 or 6244887 ×3
  • Brick Sloped 33° 3 x 2 White Part 3298 Element 329801 ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin White Part 3040b Element 6552115 or 4121932 ×1
  • Brick Sloped 45° 2 x 2 White Part 3039 Element 6552103 or 303901 Also in Trans-Clear ×1
  • Brick Sloped 75° 2 x 1 x 3 with Hollow Stud White Part 4460b Element 6552112 or 446001 ×2
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] White Part 3684 Element 4248055 or 4143976 ×1
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Ovoid Bottom Pin White Part 3747b Element 4500469 ×1
  • Brick Sloped Inverted 34° 3 x 1 with Internal Stopper White Part 4287b ×2
  • Brick Sloped Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] White Part 3660 Element 366001 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 45° 2 x 2 Yellow Part 3039 Element 303924 ×2

Bricks Round and Cones 139 pieces

  • Brick Round 1 x 1 Open Stud Black Part 3062b Element 306226 ×3
  • Cone 1 x 1 [No Top Groove] Black Part 4589 Element 4518219 or 458926 ×2
  • Cone 1 x 1 [No Top Groove] Blue Part 4589 Element 4520957 or 458923 ×9
  • Cone 2 x 2 x 2, Open Stud Dark Bluish Gray Part 3942c Element 6533790 or 6092666 ×3
  • Brick Round 1 x 1 Open Stud Light Bluish Gray Part 3062b Element 4211412 ×2
  • Brick Round 2 x 2 with Axle Hole Light Bluish Gray Part 3941 Element 4211526 ×18
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch Light Bluish Gray Part 3063b Element 4215385 ×2
  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder Lime Part 30367b ×3
  • Brick Round 2 x 2 with Axle Hole Red Part 3941 Element 614321 or 394121 ×1
  • Cone 1 x 1 [No Top Groove] Red Part 4589 Element 458921 Also in Trans-Red ×16
  • Brick Round 1 x 1 Open Stud Reddish Brown Part 3062b Element 4211183 ×42
  • Cone 1 x 1 [No Top Groove] Reddish Brown Part 4589 Element 4520961 or 4225714 ×4
  • Cone 1 x 1 [No Top Groove] Trans-Dark Blue Part 4589 Element 618843 ×4
  • Cone 1 x 1 [No Top Groove] Trans-Green Part 4589 Element 4108129 or 618848 ×1
  • Cone 1 x 1 [No Top Groove] Trans-Red Part 4589 Element 618841 Also in Red ×1
  • Cone 1 x 1 [No Top Groove] Trans-Yellow Part 4589 Element 618844 ×3
  • Brick Round 1 x 1 Open Stud White Part 3062b Element 6619283 or 306201 ×5
  • Brick Round 2 x 2 with Axle Hole White Part 3941 Element 6601920 or 614351 ×3
  • Cone 1 x 1 [No Top Groove] White Part 4589 Element 458901 ×10
  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder Yellow Part 30367b Element 4185784 ×1
  • Brick Round 2 x 2 with Axle Hole Yellow Part 3941 Element 614324 or 394124 ×6

Tiles 96 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×7
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×6
  • Tile 1 x 8 with Groove Black Part 4162 Element 416226 ×4
  • Tile 1 x 2 with Groove Blue Part 3069b Element 306923 ×7
  • Tile 2 x 2 with Groove Blue Part 3068b Element 306823 ×2
  • Tile 1 x 1 with Groove Light Bluish Gray Part 3070b Element 4211415 ×16
  • Tile 2 x 2 with Groove Light Bluish Gray Part 3068b Element 4211413 ×26
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×3
  • Tile 1 x 6 with Groove Red Part 6636 Element 4113858 ×2
  • Tile 1 x 8 with Groove Red Part 4162 Element 416221 ×2
  • Tile 1 x 2 with Black "POLICE" and Red Line Print White Part 3069bpr0016 Element 81869 ×2
  • Tile 1 x 2 with Diagonal Red Stripes Print White Part 3069bpr0085 Element 4212379 ×6
  • Tile 1 x 6 with Groove White Part 6636 Element 6548296 or 663601 ×2
  • Tile 1 x 8 with Groove White Part 4162 Element 6552110 or 416201 ×6
  • Tile 2 x 2 with Groove White Part 3068b Element 6548263 or 306801 ×1
  • Tile 1 x 2 with Groove Yellow Part 3069b Element 306924 ×2
  • Tile 1 x 6 with Groove Yellow Part 6636 Element 6388488 or 663624 ×2

Panels 73 pieces

  • Panel 1 x 1 x 1 Corner Black Part 6231 Element 4106347 or 4101709 ×2
  • Panel 1 x 2 x 1 [Square Corners] Black Part 4865a Element 486526 ×4
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Black Part 43337 Element 4239147 or 4233256 ×4
  • Panel 1 x 1 x 1 Corner Red Part 6231 Element 4190219 or 623121 ×7
  • Panel 1 x 2 x 1 [Square Corners] Red Part 4865a ×10
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] Red Part 43337 Element 4546878 or 4247100 ×6
  • Panel 1 x 2 x 2 [Hollow Studs] Trans-Clear Part 4864b Element 4113028 ×5
  • Panel 1 x 1 x 1 Corner White Part 6231 Element 6619293 or 623101 ×9
  • Panel 1 x 2 x 1 [Square Corners] White Part 4865a Element 486501 ×3
  • Panel 1 x 4 x 1 with Rounded Corners [Thick Wall] White Part 43337 Element 4173477 ×10
  • Panel 1 x 1 x 1 Corner Yellow Part 6231 Element 4201587 or 4113238 ×8
  • Panel 1 x 2 x 1 [Square Corners] Yellow Part 4865a Element 486524 ×5

Hinges, Arms and Turntables 50 pieces

  • Turntable 2 x 2 Plate, Base Black Part 3680 Element 368076 or 368026 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Blue Part 73983 Element 6102759 or 4119371 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Dark Bluish Gray Part 44301a Element 4210883 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On Top Dark Bluish Gray Part 30383 Element 6265693 or 4210726 ×2
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Dark Bluish Gray Part 44302a Element 4210884 ×3
  • Hinge Brick 1 x 2 Base Light Bluish Gray Part 3937 Element 4211469 ×3
  • Hinge Brick 1 x 2 Top Plate Thin Light Bluish Gray Part 3938 Element 4211470 ×8
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Light Bluish Gray Part 44567a Element 4211814 ×2
  • Hinge Tile 1 x 3 Locking with 1 Finger on Top Light Bluish Gray Part 44300 Element 4211802 ×2
  • Turntable 2 x 2 Plate - Top Light Bluish Gray Part 3679 Element 4540203 or 4495467 ×2
  • Hinge Plate 1 x 2 Locking with 1 Finger On End, with Groove Red Part 44301a Element 4183039 ×3
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Red Part 44302a Element 6249371 or 6074865 ×4
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Red Part 73983 Element 6102786 or 74230 ×3
  • Hinge Brick 1 x 2 Base White Part 3937 Element 6619287 or 393701 ×5
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] White Part 73983 Element 6102776 or 4287153 ×3
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Yellow Part 44302a Element 4183981 ×2
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Yellow Part 73983 Element 6102768 or 4205196 ×2

Transportation - Land 43 pieces

  • Wheel Holder, Plate, Round 2 x 2 Thin with Clips Light Bluish Gray Part 2655 Element 6152344 or 4211373 ×43

Wheels and Tyres 43 pieces

  • Wheel Skateboard / Trolley Black Part 2496 Element 6223673 or 4569104 ×43

Plates Special 37 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×1
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×1
  • Technic Plate 2 x 4 [3 Holes] Blue Part 3709 Element 370923 ×6
  • Technic Plate 2 x 6 [5 Holes] Blue Part 32001 Element 4114027 or 3200123 ×2
  • Technic Plate 2 x 8 [7 Holes] Blue Part 3738 Element 373823 ×5
  • Plate Special 1 x 2 with 1 Stud without Groove (Jumper) Light Bluish Gray Part 3794a ×4
  • Technic Plate 2 x 4 [3 Holes] Red Part 3709 Element 370921 ×2
  • Technic Plate 2 x 8 [7 Holes] Red Part 3738 Element 373821 ×1
  • Bracket 1 x 2 - 1 x 4 [Square Corners] White Part 2436 Element 4282737 or 4159314 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] White Part 6019 Element 601951 or 601901 ×2
  • Technic Plate 2 x 4 [3 Holes] White Part 3709 Element 370901 ×9
  • Bracket 1 x 2 - 1 x 4 [Square Corners] Yellow Part 2436 Element 4282745 or 243624 ×1
  • Technic Plate 2 x 4 [3 Holes] Yellow Part 3709 Element 370924 ×1
  • Technic Plate 2 x 8 [7 Holes] Yellow Part 3738 Element 4624216 or 373824 ×1

Bricks Curved 23 pieces

  • Brick Curved Inverted 6 x 1 Black Part 42023 Element 6112323 or 4160409 ×1
  • Brick Arch 1 x 4 x 2 Light Bluish Gray Part 6182 Element 6031056 or 4225119 ×2
  • Brick Curved 6 x 1 Red Part 42022 Element 4160390 ×8
  • Brick Arch 1 x 4 x 2 White Part 6182 Element 6031098 or 618201 ×2
  • Brick Curved 6 x 1 White Part 42022 Element 4160387 ×10

Bars, Ladders and Fences 16 pieces

  • Antenna 1 x 4 with Rounded Top Black Part 3957a ×3
  • Antenna 1 x 4 with Rounded Top Light Bluish Gray Part 3957a ×6
  • Lever Small Base with Black Lever Light Bluish Gray Part 298c02 Element 4221775 ×4
  • Antenna 1 x 4 with Rounded Top White Part 3957a ×3

Baseplates 16 pieces

  • Baseplate 16 x 16 Bright Green Part 3867 Element 4217334 or 4114221 ×4
  • Baseplate 16 x 16 Dark Bluish Gray Part 3867 Element 6004921 or 4261365 ×12

Bricks Special 7 pieces

  • Brick Special 1 x 2 with Grille Black Part 2877 Element 287726 ×2
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×2
  • Brick Special 1 x 2 with Grille Red Part 2877 Element 6219677 or 287721 ×3

Flags, Banners and Signs 6 pieces

  • Flag 2 x 2 Square [Thin Clips] Blue Part 2335 Element 4523407 or 4160793 ×1
  • Flag 2 x 2 Square [Thin Clips] Red Part 2335 Element 4523404 or 4162384 ×5

Tiles Special 6 pieces

  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×4
  • Tile Special 1 x 1 with Clip and Straight Tips Red Part 2555 Element 255521 ×1
  • Tile Special 1 x 1 with Clip and Straight Tips Yellow Part 2555 Element 4164060 or 255524 ×1

String, Bands and Reels 4 pieces

  • String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 ×4

Bricks Wedged 2 pieces

  • Brick Wedged 3 x 3 Facet Light Bluish Gray Part 2462 Element 4211718 ×2

Tools 2 pieces

  • Brick Separator v1.0 Green Part 6007 Element 600728 ×2

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.