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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.

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21315 Pop-Up Book

842 pieces in 195 part and color combinations, plus 4 minifigures.

The official piece count includes the 17 parts inside the set's minifigures, which this inventory lists separately. 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.

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Piece checklist

Plates 199 pieces

  • Plate 1 x 1 Dark Green Part 3024 Element 6618077 or 6055169 1 spare in the box ×10
  • Plate 1 x 2 Dark Green Part 3023 Element 6618076 or 6013797 ×28
  • Plate 1 x 3 Dark Green Part 3623 Element 6618081 or 6013975 ×2
  • Plate 1 x 4 Dark Green Part 3710 Element 6618083 or 6020923 ×30
  • Plate 1 x 6 Dark Green Part 3666 Element 6618082 or 4245566 ×32
  • Plate 1 x 2 Green Part 3023 Element 302328 ×6
  • Plate 1 x 4 Green Part 3710 Element 371028 ×1
  • Plate 2 x 12 Green Part 2445 Element 6218146 or 4264336 ×4
  • Plate 2 x 3 Green Part 3021 Element 302128 ×2
  • Plate 1 x 12 Light Bluish Gray Part 60479 Element 4514846 ×4
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×5
  • Plate 1 x 3 Light Bluish Gray Part 3623 Element 4211429 or 3623194 ×1
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 2 x 4 Light Bluish Gray Part 3020 Element 4211395 ×1
  • Plate 1 x 2 Medium Azure Part 3023 Element 6603337 or 6097419 ×1
  • Plate 1 x 1 Red Part 3024 Element 302421 1 spare in the box ×2
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×5
  • Plate 1 x 4 Reddish Brown Part 3710 Element 4211190 ×6
  • Plate 1 x 6 Reddish Brown Part 3666 Element 4221590 ×2
  • Plate 2 x 2 Corner Reddish Brown Part 2420 Element 4211257 ×2
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×1
  • Plate 1 x 1 Tan Part 3024 Element 4159553 or 302405 1 spare in the box ×8
  • Plate 1 x 10 Tan Part 4477 Element 4143409 or 447705 ×4
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×6
  • Plate 1 x 6 Tan Part 3666 Element 4124067 or 366605 ×8
  • Plate 6 x 8 Tan Part 3036 Element 6070501 or 4114056 ×2
  • Plate 1 x 1 Trans-Yellow Part 3024 Element 6513966 or 6252045 1 spare in the box ×1
  • Plate 1 x 1 White Part 3024 Element 6548262 or 302401 1 spare in the box ×8
  • Plate 1 x 2 White Part 3023 Element 6552100 or 6548261 ×5
  • Plate 1 x 3 White Part 3623 Element 6552105 or 6550144 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×2
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×1
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×1
  • Plate 2 x 3 White Part 3021 Element 6550136 or 302101 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 3 x 3 Cross White Part 15397 Element 6099412 ×1
  • Plate 1 x 2 Yellow Part 3023 Element 302324 ×2

Bricks Special 149 pieces

  • Brick Special 1 x 1 with Studs on 2 Sides Black Part 47905 Element 4214559 ×18
  • Brick Special 1 x 2 with Studs on 2 Sides Black Part 52107 Element 4253815 ×24
  • Brick Special 1 x 1 with Stud on 1 Side Dark Bluish Gray Part 87087 Element 4558955 ×6
  • Brick Special 1 x 2 Palisade [aka Log] Dark Bluish Gray Part 30136 Element 4211095 ×9
  • Brick Special 1 x 1 with Stud on 1 Side Dark Green Part 87087 Element 6055222 ×38
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side Dark Green Part 32952 Element 6252591 ×14
  • Brick Special 1 x 4 with 4 Studs on One Side Dark Green Part 30414 Element 6626280 or 6055239 ×22
  • Brick Special 1 x 1 with Headlight Green Part 4070 Element 4187334 or 4109676 ×1
  • Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] Light Bluish Gray Part 60475b Element 6345426 or 4533772 ×2
  • Brick Special 1 x 2 Palisade [aka Log] Light Bluish Gray Part 30136 Element 4550325 or 4519968 ×2
  • Brick Special 1 x 2 with Masonry Brick Profile Light Bluish Gray Part 98283 Element 6000066 ×4
  • Brick Special 1 x 1 with Scroll with Open Stud Reddish Brown Part 20310 Element 6172757 ×2
  • Brick Special 1 x 1 with Headlight White Part 4070 Element 6548267 or 407001 ×2
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side White Part 32952 Element 6552171 or 6548288 ×3
  • Brick Special 1 x 2 with 2 Studs on 1 Side White Part 11211 Element 6550150 or 6058177 ×2

Bricks 117 pieces

  • Brick 1 x 12 Dark Green Part 6112 Element 6252592 ×22
  • Brick 1 x 2 Dark Green Part 3004 Element 6618072 or 4245570 ×20
  • Brick 1 x 4 Dark Green Part 3010 Element 6618074 or 4245571 ×22
  • Brick 1 x 2 Green Part 3004 Element 4107736 or 300428 ×1
  • Brick 1 x 3 Green Part 3622 Element 4109679 or 362228 ×1
  • Brick 1 x 4 Green Part 3010 Element 4112838 or 301028 ×2
  • Brick 1 x 6 Green Part 3009 Element 4111844 or 300928 ×1
  • Brick 2 x 4 Green Part 3001 Element 4106356 or 300128 ×1
  • Brick 1 x 1 Light Bluish Gray Part 3005 Element 4211389 ×4
  • Brick 1 x 6 Light Bluish Gray Part 3009 Element 4211393 ×3
  • Brick 1 x 2 Medium Azure Part 3004 Element 6603336 or 6092674 ×3
  • Brick 1 x 3 Red Part 3622 Element 362221 ×2
  • Brick 1 x 2 Reddish Brown Part 3004 Element 4613963 or 4211149 ×2
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×2
  • Brick 1 x 1 Tan Part 3005 Element 4113915 or 300505 ×2
  • Brick 1 x 12 Tan Part 6112 Element 6075179 or 4114049 ×8
  • Brick 1 x 2 Tan Part 3004 Element 4109995 or 300405 ×4
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×4
  • Brick 1 x 2 White Part 3004 Element 6548257 or 4613964 ×4
  • Brick 1 x 2 x 2 with Inside Stud Holder White Part 3245c Element 6550139 or 4113261 ×3
  • Brick 1 x 3 White Part 3622 Element 6550143 or 362201 ×4
  • Brick 1 x 4 White Part 3010 Element 6550135 or 301001 ×2

Tiles 78 pieces

  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×2
  • Tile 2 x 4 with Groove Red Part 87079 Element 4560179 ×1
  • Tile 1 x 1 with Groove Reddish Brown Part 3070b Element 4211288 1 spare in the box ×4
  • Tile 1 x 2 with Groove Reddish Brown Part 3069b Element 4211151 ×7
  • Tile 1 x 3 Reddish Brown Part 63864 Element 6100769 ×14
  • Tile 1 x 4 with Groove Reddish Brown Part 2431 Element 4211194 ×2
  • Tile 1 x 6 with Gold "DAVIS" Print Reddish Brown Part 6636pr0020 Element 6254450 ×1
  • Tile 1 x 6 with Gold 'ALLEMANN' Print Reddish Brown Part 6636pr0019 Element 6254441 ×1
  • Tile 1 x 6 with Groove Reddish Brown Part 6636 Element 4211204 ×2
  • Tile 1 x 8 with Groove Reddish Brown Part 4162 Element 4585337 or 4501848 ×20
  • Tile 8 x 16 with "Once Upon a Brick" Decorative Print Reddish Brown Part 90498pr0003 Element 6254400 ×1
  • Tile 8 x 16 with Bottom Tubes Reddish Brown Part 90498 Element 6250298 ×1
  • Tile 1 x 3 Tan Part 63864 Element 6131896 ×6
  • Tile 1 x 4 with Groove Tan Part 2431 Element 4550324 or 4542398 ×4
  • Tile 1 x 6 with Groove Tan Part 6636 Element 4157277 or 4108151 ×12

Plates Special 47 pieces

  • Plate Special 1 x 2 [Side Handle Closed Ends] Black Part 48336 Element 4225201 ×1
  • Bracket 1 x 1 - 1 x 1 Inverted Dark Bluish Gray Part 36840 Element 6225494 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Green Part 60470b Element 6347288 or 4556159 ×1
  • Bracket 1 x 2 - 1 x 2 Light Bluish Gray Part 99781 Element 4654582 ×2
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Light Bluish Gray Part 15573 Element 6066097 or 4211451 ×3
  • Plate Special 1 x 2 with Pin Hole Underneath Light Bluish Gray Part 18677 Element 6168633 or 6089147 ×32
  • Plate Special 1 x 4 with Bar Down Light Bluish Gray Part 30043 Element 6173095 or 4261605 ×1
  • Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib] Light Bluish Gray Part 10247 Element 6045988 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Light Bluish Gray Part 87580 Element 6126082 or 4565393 ×1
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Light Bluish Gray Part 99206 Element 4654577 ×1
  • Bracket 1 x 2 - 1 x 2 White Part 99781 Element 6552141 or 6548275 ×2

Bricks Sloped 44 pieces

  • Brick Sloped 45° 2 x 2 Bright Light Orange Part 3039 Element 6020181 ×6
  • Brick Sloped 65° 2 x 1 x 2 Bright Light Orange Part 60481 Element 6525912 or 6186637 ×4
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Dark Azure Part 15571 Element 6523395 or 6151689 ×2
  • Brick Sloped 45° 2 x 2 Double Concave Dark Bluish Gray Part 3046a Element 6477380 or 4210702 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Green Part 54200 Element 4546705 or 4503118 1 spare in the box ×1
  • Brick Sloped 33° 3 x 1 Green Part 4286 Element 4107637 or 428628 ×6
  • Brick Sloped 45° 2 x 1 with Bottom Pin Green Part 3040b Element 4121969 or 4109668 ×3
  • Brick Sloped 45° 2 x 2 Green Part 3039 Element 303928 ×1
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Light Bluish Gray Part 61409 Element 6092111 ×1
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Light Bluish Gray Part 54200 Element 4521921 or 4244372 1 spare in the box ×3
  • Brick Sloped Double 45° 1 x 1 Orange Part 35464 Element 6223631 1 spare in the box ×6
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Trans-Orange Part 54200 Element 6245265 or 4244369 1 spare in the box ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×2
  • Brick Sloped 45° 2 x 1 with Bottom Pin Yellow Part 3040b Element 4121965 or 304024 ×2
  • Brick Sloped 45° 2 x 2 Double Convex Yellow Part 3045 Element 6378402 or 4271076 ×3

Bricks Curved 40 pieces

  • Brick Curved 2 x 1 No Studs [1/2 Bow] Bright Light Orange Part 11477 Element 6099728 ×5
  • Brick Arch 1 x 4 Dark Bluish Gray Part 3659 Element 4210999 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Green Part 6091 Element 6374489 or 6100223 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Green Part 11477 Element 6047426 ×7
  • Brick Curved 2 x 2 x 2/3 Green Part 15068 Element 6116259 ×1
  • Brick Curved 4 x 1 Double, No Studs Light Bluish Gray Part 93273 Element 4622803 ×1
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Lime Part 11477 Element 6069006 ×3
  • Brick Curved 2 x 2 x 2/3 Medium Azure Part 15068 Element 6119126 ×2
  • Brick Curved 4 x 1 Double, No Studs Red Part 93273 Element 4633914 ×1
  • Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version] White Part 15254 Element 6548280 or 6106183 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×1
  • Brick Curved 1 x 3 x 2 White Part 33243 Element 4141668 or 4128644 ×6
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×2
  • Brick Curved 4 x 1 Double, No Studs White Part 93273 Element 6552143 or 6023806 ×2
  • Brick Curved Inverted 2 x 1 White Part 24201 Element 6601928 or 6172927 ×4
  • Brick Curved Inverted 4 x 1 White Part 13547 Element 6552146 or 6034675 ×1

Technic Pins 27 pieces

  • Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole] Black Part 32054 Element 4140801 or 4107742 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 1 spare in the box ×5
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 1 spare in the box ×1
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×4
  • Technic Pin 1/2 without Friction Ridges Light Bluish Gray Part 4274 Element 4274194 or 4211483 1 spare in the box ×9
  • Technic Pin without Friction Ridges Lengthwise Light Bluish Gray Part 3673 Element 4211807 or 3673194 1 spare in the box ×3
  • Technic Pin Long without Friction Ridges Tan Part 32556 ×1

Hinges, Arms and Turntables 26 pieces

  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Black Part 73983 Element 6102782 or 74011 ×4
  • Hinge Brick 1 x 4 [Lower] Dark Green Part 3831 Element 6252589 ×8
  • Hinge Brick 1 x 4 [Upper] Dark Green Part 3830 Element 6252590 ×8
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] Light Bluish Gray Part 73983 Element 6102769 or 4219256 ×2
  • Hinge Brick 1 x 4 [Lower] White Part 3831 Element 6619285 or 383101 ×1
  • Hinge Brick 1 x 4 [Upper] White Part 3830 Element 6327411 or 6011456 ×1
  • Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly] White Part 73983 Element 6102776 or 4287153 ×2

Plants & Trees 20 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Bright Green Part 24866 Element 6526150 or 6206150 1 spare in the box ×2
  • Plant, Plate 1 x 1 Round with 3 Leaves Bright Green Part 32607 Element 6182261 ×5
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Lime Part 24866 Element 6209692 1 spare in the box ×9
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Magenta Part 24866 Element 6209682 1 spare in the box ×2
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Red Part 24866 Element 6206148 1 spare in the box ×2

Tiles Round and Curved 20 pieces

  • Tile Round 1 x 1 Quarter Light Bluish Gray Part 25269 Element 6176433 1 spare in the box ×2
  • Tile 4 x 4 Curved, Macaroni Reddish Brown Part 27507 Element 6458167 or 6176608 ×8
  • Tile Round 1 x 1 Reddish Brown Part 98138 Element 6284586 or 6133854 1 spare in the box ×2
  • Tile Round 1 x 1 Quarter Reddish Brown Part 25269 Element 6149677 1 spare in the box ×4
  • Tile Round 1 x 1 with Jam in Center Cookie Print Tan Part 98138pr0050 Element 6285621 or 6139650 1 spare in the box ×2
  • Tile Round 1 x 1 Quarter White Part 25269 Element 6548285 or 6172366 1 spare in the box ×2

Plates Round Curved and Dishes 13 pieces

  • Plate Round 1 x 1 with Solid Stud Pearl Gold Part 6141 Element 4523159 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Reddish Brown Part 6141 Element 4216581 1 spare in the box ×6
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) White Part 4032a Element 6601914 or 403201 ×2
  • Plate Round Corner 3 x 3 White Part 30357 Element 6550165 or 4550745 ×1

Bricks Round and Cones 9 pieces

  • Brick Round 1 x 1 Open Stud Dark Bluish Gray Part 3062b Element 4211090 ×3
  • Cone 1 x 1 [Top Groove] Green Part 59900 Element 4529239 ×5
  • Brick Round 1 x 1 Open Stud Tan Part 3062b Element 4117070 or 306205 ×1

Technic Connectors 9 pieces

  • Technic Pin Connector Plate 1 x 2 x 1 2/3 [Two Holes On Top] Dark Bluish Gray Part 32530 Element 4210763 ×1
  • Technic Axle and Pin Connector Angled #6 - 90° Light Bluish Gray Part 32014 Element 6268924 or 4509886 ×4
  • Technic Pin Connector Round [Slotted] Light Bluish Gray Part 62462 Element 6173127 or 4526985 ×4

Technic Axles 8 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×4
  • Technic Axle 5 with Stop Reddish Brown Part 15462 Element 6159763 ×4

Windows and Doors 8 pieces

  • Window 1 x 2 x 2 Flat Front Black Part 60592 Element 6382697 or 4521439 ×1
  • Window Pane Latticed 1 x 2 x 2 Black Part 38320 Element 6477141 or 6234994 ×1
  • Door 1 x 4 x 6 Round Top with Window and Keyhole, Reinforced Edge Dark Brown Part 64390 Element 6254792 ×1
  • Window 1 x 2 x 2 Castle Light Bluish Gray Part 90195 Element 4642934 or 4583689 ×1
  • Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top Pearl Gold Part 30046 Element 6173106 or 4541895 ×1
  • Window 1 x 2 x 3 Pane Latticed with Thick Corner Tabs Pearl Gold Part 60607 Element 4541873 ×2
  • Window 1 x 4 x 3 without Shutter Tabs Reddish Brown Part 60594 Element 4597419 or 4595889 ×1

Plates Wedged 6 pieces

  • Wedge Plate 4 x 4 Cut Corner Green Part 30503 Element 4651215 or 4208191 ×2
  • Wedge Plate 2 x 2 Cut Corner Light Bluish Gray Part 26601 Element 6186657 ×2
  • Wedge Plate 8 x 3, 22° Left Light Bluish Gray Part 50305 Element 4258275 or 4228302 ×1
  • Wedge Plate 8 x 3, 22° Right Light Bluish Gray Part 50304 Element 4258273 or 4228300 ×1

Minifig Accessories 5 pieces

  • Bag / Basket Bright Light Orange Part 93092 Element 6096091 or 4621637 ×1
  • Equipment Cup / Mug [Plain] Dark Pink Part 3899 Element 4618670 or 4243575 ×1
  • Equipment Teapot Dark Pink Part 23986 Element 6133667 ×1
  • Sports Roller Skate Light Bluish Gray Part 11253 Element 6217791 1 spare in the box ×2

Technic Beams 5 pieces

  • Technic Beam 1 x 7 Thick Bright Green Part 32524 Element 6097392 ×2
  • Technic Beam 1 x 13 Thick Green Part 41239 Element 6619976 or 6439558 ×1
  • Technic Beam 1 x 3 Thick Lime Part 32523 Element 6170474 or 4265684 ×1
  • Technic Beam 1 x 5 Thick Lime Part 32316 Element 4661486 or 4571220 ×1

Technic Bricks 5 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Reddish Brown Part 3700 Element 4211252 ×3
  • Technic Brick 1 x 4 [3 Pin Holes] Reddish Brown Part 3701 Element 4267994 ×1
  • Technic Brick 1 x 1 with Pin Hole Tan Part 6541 Element 4179771 or 654105 ×1

Technic Bushes 4 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×4

Minifigs 1 piece

  • Minifig Trophy Statuette, Jack Print Blue Part 90398pr0048 Element 6251962 1 spare in the box ×1

String, Bands and Reels 1 piece

  • String with End Studs 11L Overall Black Part 14226c11 Element 6096955 or 6037558 1 spare in the box ×1

Tools 1 piece

  • Brick and Axle Separator v2.0 Orange Part 96874 Element 6240515 or 4654448 ×1

Minifigures 4 figures

  • Grandmother Minifigure, checked as a whole figure ×1
  • Little Red Riding Hood Minifigure, checked as a whole figure ×1
  • The Giant Minifigure, checked as a whole figure ×1
  • The Wolf Minifigure, checked as a whole figure ×1

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.

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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.

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