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Harley Quinn Cannonball Attack

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70921 Harley Quinn Cannonball Attack

402 pieces in 178 part and color combinations, plus 4 minifigures.

The official piece count includes the 23 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.

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.

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Piece checklist

Plates Round Curved and Dishes 59 pieces

  • Dish 2 x 2 Inverted [Radar] Black Part 4740 Element 474026 ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 1 spare in the box ×1
  • Plate Round 4 x 4 with 2 x 2 Round Opening Black Part 11833 Element 6167800 or 6045912 ×3
  • Plate Round 4 x 4 with Pin Hole Black Part 60474 Element 4515350 ×3
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×20
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Light Bluish Gray Part 2654 Element 4278273 or 4276273 ×8
  • Dish 2 x 2 Inverted [Radar] Red Part 4740 Element 4585146 or 4279383 ×1
  • Plate Round 4 x 4 with Pin Hole Red Part 60474 Element 4515348 ×6
  • Plate Round Corners 2 x 6 Double Red Part 18980 Element 6108802 ×1
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Reddish Brown Part 4032a Element 4211159 ×3
  • Plate Round 1 x 1 with Solid Stud Trans-Light Blue Part 6141 Element 6514058 or 6240225 1 spare in the box ×4
  • Plate Round 1 x 1 with Solid Stud Trans-Yellow Part 6141 Element 6514056 or 6240216 1 spare in the box ×4
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 ×1
  • Dish 4 x 4 Inverted [Radar] with Black Star, Red Circle Print White Part 3960pr9992 Element 6210473 ×2

Plates 58 pieces

  • Plate 1 x 2 Black Part 3023 Element 302326 ×5
  • Plate 1 x 4 Black Part 3710 Element 371026 ×4
  • Plate 1 x 6 Black Part 3666 Element 366626 Also in Dark Bluish Gray ×3
  • Plate 2 x 4 Black Part 3020 Element 302026 ×3
  • Plate 2 x 6 Blue Part 3795 Element 379523 ×1
  • Plate 1 x 3 Dark Bluish Gray Part 3623 Element 4211133 ×3
  • Plate 1 x 6 Dark Bluish Gray Part 3666 Element 4211056 Also in Black ×1
  • Plate 4 x 6 Dark Bluish Gray Part 3032 Element 4211115 or 3032199 ×2
  • Plate 4 x 8 Dark Bluish Gray Part 3035 Element 4211061 ×1
  • Plate 6 x 10 Dark Bluish Gray Part 3033 Element 4211114 ×1
  • Plate 6 x 6 Dark Bluish Gray Part 3958 Element 4211134 ×2
  • Plate 1 x 2 Light Bluish Gray Part 3023 Element 4211398 or 3023194 ×10
  • Plate 1 x 4 Light Bluish Gray Part 3710 Element 4211445 ×1
  • Plate 1 x 8 Light Bluish Gray Part 3460 Element 4211425 ×1
  • Plate 2 x 2 Light Bluish Gray Part 3022 Element 4211397 ×2
  • Plate 2 x 2 Corner Light Bluish Gray Part 2420 Element 4211353 ×2
  • Plate 2 x 3 Light Bluish Gray Part 3021 Element 4211396 ×2
  • Plate 1 x 4 Red Part 3710 Element 371021 ×1
  • Plate 4 x 6 Red Part 3032 Element 303221 ×2
  • Plate 1 x 2 Trans-Orange Part 3023 Element 6514005 or 6240217 ×2
  • Plate 1 x 2 Trans-Yellow Part 3023 Element 6514002 or 6240211 ×2
  • Plate 1 x 6 White Part 3666 Element 6552107 or 6548265 ×1
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×3
  • Plate 2 x 8 White Part 3034 Element 6552101 or 303401 ×3

Plates Special 37 pieces

  • Plate Special 1 x 2 Side Handle [Free Ends] Black Part 2540 Element 4140588 or 254026 ×2
  • Plate Special 1 x 2 with Door Rail Black Part 32028 Element 4107761 ×5
  • Plate Special 2 x 2 x 2/3 with Two Studs On Side and Two Raised [Solid Anti-stud] Black Part 99206 Element 6052126 ×2
  • Plate Special 3 x 2 with Rounded End, Hole Black Part 3176 Element 317676 or 317626 ×2
  • Plate Special Round 1 x 1 with Hollow Stud and Horizontal Bar 1L Black Part 32828 Element 6196548 1 spare in the box ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Black Part 18674 Element 6195325 ×2
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Dark Bluish Gray Part 61252 Element 6360111 or 4579354 ×1
  • Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) Dark Bluish Gray Part 15573 Element 6092572 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Bluish Gray Part 60478 Element 4521187 ×2
  • Plate Special 4 x 6, Studs on 3 Edges Dark Bluish Gray Part 6180 Element 6199511 or 6000647 ×1
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×2
  • Plate Special 1 x 2 with Door Rail Light Bluish Gray Part 32028 Element 4211568 ×2
  • Plate Special 1 x 4 with 2 Studs, 3 Bottom Tubes Light Bluish Gray Part 92593 Element 4599498 ×3
  • Plate Special 1 x 4 with Towball Socket, Flattened Light Bluish Gray Part 98263 Element 6273218 or 4667166 ×1
  • Plate Special 1 x 8 with Door Rail Light Bluish Gray Part 4510 Element 4211498 ×2
  • Plate Special 2 x 2 with Grills Light Bluish Gray Part 41862 Element 4211748 ×1
  • Plate Special 1 x 2 [Side Handle Closed Ends] Red Part 48336 Element 4226876 ×2
  • Plate Special 1 x 2 with Bar Up [Horizontal Arm 5mm] Red Part 88072 Element 6261351 or 4611701 ×2

Bricks 31 pieces

  • Brick 1 x 1 Black Part 3005 Element 300526 ×2
  • Brick 1 x 2 Black Part 3004 Element 300426 ×3
  • Brick 1 x 4 Black Part 3010 Element 301026 ×2
  • Brick 1 x 1 x 3 Light Bluish Gray Part 14716 Element 6061702 ×4
  • Brick 1 x 1 x 5 with Solid Stud Light Bluish Gray Part 2453b Element 4211362 ×2
  • Brick 1 x 2 Light Bluish Gray Part 3004 Element 4211388 ×3
  • Brick 1 x 2 x 2 with Inside Stud Holder Light Bluish Gray Part 3245c Element 4211564 ×2
  • Brick 1 x 2 x 5 with Hollow Studs Light Bluish Gray Part 2454b Element 4211363 ×2
  • Brick 1 x 4 Light Bluish Gray Part 3010 Element 4211394 ×3
  • Brick 2 x 4 Tan Part 3001 Element 4114319 or 300105 ×2
  • Brick 1 x 1 White Part 3005 Element 6552096 or 6548258 ×6

Technic Pins 28 pieces

  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 2 spares in the box ×12
  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×4
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 2 spares in the box ×12

Bricks Curved 20 pieces

  • Brick Arch 1 x 3 x 2 Curved Top Black Part 6005 Element 4618880 or 4188168 ×4
  • Brick Arch 1 x 6 Raised Arch Black Part 92950 Element 4620763 ×2
  • Brick Curved 1 x 3 x 2 Black Part 33243 Element 6616748 or 4582251 ×2
  • Brick Curved 1 x 4 x 1 1/3 No Studs Black Part 10314 Element 6019726 or 619126 ×2
  • Brick Curved 2 x 2, Two Top Studs Black Part 30165 Element 4200023 or 4113231 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Blue Part 6091 Element 6411363 or 6115447 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Light Bluish Gray Part 11477 Element 6028813 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Red Part 11477 Element 6029946 ×2
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2

Bricks Special 17 pieces

  • Brick Special 1 x 1 with Clip Horizontal Black Part 60476 Element 6320309 or 4535765 ×2
  • Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Blue Part 11215 Element 6033353 ×2
  • Brick Special 2 x 2 with 2 Pins and Axle Hole Dark Bluish Gray Part 30000 Element 6405646 or 4211024 ×4
  • Brick Special 1 x 1 with Stud on 1 Side Light Bluish Gray Part 87087 Element 4558953 ×2
  • Brick Special 1 x 2 with Masonry Brick Profile Medium Nougat Part 98283 Element 4656783 ×4
  • Bracket 5 x 2 x 1 1/3 with Holes, Pin Bottom Red Part 11215 Element 6029952 ×2
  • Brick Special 1 x 1 with Studs on 2 Sides Red Part 47905 Element 6030266 or 4550236 ×1

Tiles Special 17 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Black Part 15712 Element 6335388 or 6066102 ×4
  • Tile Special 1 x 2 with Handle Black Part 2432 Element 243226 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove Dark Bluish Gray Part 2412b Element 4210631 ×4
  • Tile Special 1 x 1 with Clip with Rounded Edges Light Bluish Gray Part 15712 Element 6308012 or 6071229 ×1
  • Tile Special 1 x 2 Grille with Bottom Groove Light Bluish Gray Part 2412b Element 4211350 ×2
  • Tile Special 1 x 1 with Clip with Rounded Edges Red Part 15712 Element 6348058 or 6072998 ×2
  • Tile Special Round 2 x 2 with Hole Red Part 15535 Element 6102138 ×1
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box ×1

Tiles 14 pieces

  • Tile 1 x 2 with Groove Black Part 3069b Element 306926 ×2
  • Tile 1 x 3 Black Part 63864 Element 4558170 ×1
  • Tile 1 x 6 with Groove Black Part 6636 Element 663626 ×1
  • Tile 2 x 2 Corner Black Part 14719 Element 6133722 ×1
  • Tile 1 x 3 Light Bluish Gray Part 63864 Element 4558169 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×6
  • Tile 2 x 3 Red Part 26603 Element 6189130 ×1

Technic Connectors 13 pieces

  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Light Bluish Gray Part 59443 Element 4512360 ×3
  • Technic Pin Connector Hub with 1 Axle Light Bluish Gray Part 22961 Element 6123815 ×2
  • Technic Pin Connector Round [Slotted] Light Bluish Gray Part 62462 Element 6173127 or 4526985 ×4
  • Technic Axle and Pin Connector Angled #1 Red Part 32013 Element 6332580 or 4254606 ×2

Technic Bricks 11 pieces

  • Technic Brick 1 x 2 [1 Pin Hole] Black Part 3700 Element 370026 ×2
  • Technic Brick 1 x 2 [2 Pin Holes] Light Bluish Gray Part 32000 Element 4211541 ×2
  • Technic Brick 1 x 8 [7 Pin Holes] Light Bluish Gray Part 3702 Element 4211442 ×2
  • Technic Brick 4 x 4 with 2 x 2 Opening Light Bluish Gray Part 32324 Element 4211640 ×2
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin White Part 32064a Element 6548286 or 6178921 ×2
  • Technic Brick 1 x 6 [5 Pin Holes] White Part 3894 Element 389401 ×1

Minifig Accessories 10 pieces

  • Equipment Camera Handheld with Central Viewfinder Black Part 30089b Element 6476480 or 4106552 ×1
  • Equipment Magnifying Glass with Thick Frame and Solid Handle with Trans-Clear Lens with Target Aim Print Black Part 10830pat0001pr0001 Element 6178140 ×1
  • Equipment Telescope / Torch / Spyglass, Support Round 1 x 1 x 1 2/3 Black Part 64644 Element 4538456 ×4
  • Equipment Camera Handheld with Central Viewfinder Red Part 30089b Element 6181718 ×1
  • Equipment Dynamite Sticks Red Part 64728 Element 6270088 or 4538780 ×1
  • Equipment Weapon, Loudhailer / Speaker / Blaster / Space Gun Red Part 4349 Element 434921 ×2

Tiles Round and Curved 8 pieces

  • Tile Round 2 x 2 with Bottom Stud Holder Light Bluish Gray Part 14769 Element 6052200 ×1
  • Tile Round 1 x 1 Trans-Clear Part 98138 Element 6514191 or 6274738 2 spares in the box Also in White ×5
  • Tile Round 1 x 1 White Part 98138 Element 6564903 or 6284572 1 spare in the box Also in Trans-Clear ×2

Wheels and Tyres 8 pieces

  • Tyre 30.4 x 14 VR Solid Black Part 58090 Element 6601610 or 4550937 ×2
  • Tyre 37 x 18 R Balloon Black Part 56891 Element 6589426 or 6518543 ×2
  • Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes Light Bluish Gray Part 55981 Element 6109684 or 4299119 ×4

Bricks Round and Cones 7 pieces

  • Cone 2 x 2 x 2, Open Stud Black Part 3942c Element 6092664 or 6022160 ×1
  • Cylinder Half 2 x 4 x 4 Black Part 6259 Element 6195295 or 4588026 ×2
  • Brick Round 4 x 4 with 4 Side Pin Holes and Center Axle Hole White Part 6222 Element 6615542 or 4203583 ×1
  • Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] White Part 85080 Element 6619303 or 6078115 ×2
  • Cone 2 x 2 x 2, Open Stud White Part 3942c Element 6044601 or 6022158 ×1

Panels 7 pieces

  • Panel 1 x 2 x 2 [Side Supports / Hollow Studs] Black Part 87552 Element 4593678 ×1
  • Panel 1 x 1 x 1 Corner Dark Bluish Gray Part 6231 Element 6025235 or 4519967 ×1
  • Panel 1 x 6 x 5 Light Bluish Gray Part 59349 Element 4527174 ×1
  • Panel 1 x 2 x 3 [Side Supports / Hollow Studs] Trans-Brown Part 87544 Element 6507950 or 6239388 ×2
  • Panel 1 x 1 x 1 Corner White Part 6231 Element 6619293 or 623101 ×2

Bars, Ladders and Fences 6 pieces

  • Bar 7 x 3 with Double Clips (Ladder) [Straight Clips] Black Part 6020 Element 602026 ×1
  • Bar 1 x 12 with 1 x 2 Plate End with Hollow Studs and 1 x 1 Round Plate End Light Bluish Gray Part 99784 Element 6010686 ×1
  • Bar Holder with Clip Reddish Brown Part 11090 Element 6341968 or 6080355 ×1
  • Bar 4L (Lightsaber Blade / Wand) White Part 30374 Element 6116602 or 4129836 ×3

Bricks Sloped 6 pieces

  • Brick Sloped 65° 2 x 2 x 2 with Bottom Tube Dark Bluish Gray Part 3678b Element 4234534 or 4210760 ×1
  • Brick Sloped 33° 3 x 1 Light Bluish Gray Part 4286 Element 4211488 ×2
  • Brick Sloped 45° 2 x 1 with Bottom pin, with Green and Red Buttons and Keypad Print Light Bluish Gray Part 3040bpr0003 Element 4228198 ×1
  • Brick Sloped Inverted 45° 2 x 1 White Part 3665 Element 6552106 or 366501 ×2

Windows and Doors 6 pieces

  • Door Frame 1 x 4 x 6 Type 2 Black Part 60596 Element 6337273 or 4535834 ×2
  • Door 1 x 4 x 6 with 4 Panes and Stud Handle Dark Blue Part 60623 Element 6186576 ×2
  • Door 1 x 3 x 2 Left - Open Between Top and Bottom Hinge White Part 92262 Element 6296037 or 6115627 ×1
  • Door 1 x 3 x 2 Right - Open Between Top and Bottom Hinge White Part 92263 Element 6296039 or 6115628 ×1

Bricks Wedged 5 pieces

  • Brick Wedged 2 x 2 Facet Black Part 87620 Element 4584274 ×2
  • Brick Wedged 2 x 2 Facet Red Part 87620 Element 4581525 ×2
  • Brick Wedged, Curved Triple 4 x 6 x 2/3 with 4 Studs Red Part 52031 Element 4259903 ×1

Hinges, Arms and Turntables 4 pieces

  • Turntable 4 x 4 Square Base, Locking Black Part 61485 Element 4517986 ×1
  • Hinge Plate 1 x 2 Locking with 1 Finger on Side, with Groove Dark Bluish Gray Part 44567a Element 4210892 ×1
  • Hinge Plate 1 x 2 Locking with 2 Fingers On End, with Groove, 9 Teeth Light Bluish Gray Part 44302a Element 4211804 ×1
  • Hinge Plate 2 x 2 Locking with 1 Finger on Top Light Bluish Gray Part 92582 Element 6265742 or 4666449 ×1

Pneumatics 4 pieces

  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×2
  • Pneumatic T-Piece (T Bar) [New Style] Light Bluish Gray Part 4697b Element 4211508 1 spare in the box ×2

Transportation - Land 4 pieces

  • Steering Stand 1 x 2 with Black Steering Wheel Black Part 3829c01 Element 73081 ×1
  • Train Pantograph Shoe with Locking Hinge with 2 Fingers Pearl Titanium Part 2922 Element 6343670 or 6200049 ×1
  • Vehicle Body, Wheel Arch / Mudguard 3 x 4 x 1 2/3 Curved Front Red Part 93587 Element 6223499 or 6186057 ×1
  • Seat / Chair 2 x 2 with Center Sprue Mark Reddish Brown Part 4079b ×1

Technic Axles 3 pieces

  • Technic Axle 5.5 with Stop [Rounded Short End] Dark Bluish Gray Part 59426 Element 4508553 ×1
  • Technic Axle 3 with Stud Dark Tan Part 6587 Element 6031821 or 6013821 ×1
  • Technic Axle 4 Red Part 3705 Element 6129995 or 4265797 ×1

Technic Bushes 3 pieces

  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 1 spare in the box ×1
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×2

Containers 2 pieces

  • Container Box 2 x 2 x 2 - Top Opening Green Part 61780 Element 4548102 ×2

Plates Wedged 2 pieces

  • Wedge Plate 4 x 4 with 2 x 2 Cutout Dark Bluish Gray Part 43719 Element 6430611 or 6275402 ×2

Technic Beams 2 pieces

  • Technic Beam 1 x 5 Thick Black Part 32316 Element 4142135 or 4140429 ×2

Technic Steering, Suspension and Engine 2 pieces

  • Technic Steering / CV Joint Axle Dark Bluish Gray Part 92906 Element 4610374 ×2

Animals / Creatures 1 piece

  • Animal, Rodent, Rat / Mouse [Plain] Light Bluish Gray Part 40234 Element 4512743 or 4225169 ×1

Energy Effects 1 piece

  • Flame / Headwear Accessory Plume / Feather, Triple Point Trans-Orange Part 64647 Element 6314353 or 6100044 1 spare in the box ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Batarang Yellow Part 98721 Element 6173918 1 spare in the box ×1

Rock 1 piece

  • Rock 1 x 1 Crystal 5 Point Trans-Dark Blue Part 30385 Element 6507864 or 6236962 ×1

Stickers 1 piece

  • Sticker Sheet for Set 70921-1 [No Color/Any Color] Part 36849 Element 6214218 ×1

Technic Special 1 piece

  • Technic Ball Joint Red Part 32474 Element 4290714 or 4178640 ×1

Tools 1 piece

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

Windscreens and Fuselage 1 piece

  • Windscreen 2 x 6 x 2, Wide Top Trans-Brown Part 4176 Element 4176111 or 4173328 ×1

Minifigures 4 figures

  • Batgirl, Dark Purple Suit, Yellow Cape, Dark Purple Cowl (3626cpr2096) Minifigure, checked as a whole figure ×1
  • Gentleman Ghost Minifigure, checked as a whole figure ×1
  • Crazy Quilt Minifigure, checked as a whole figure ×1
  • Harley Quinn in Cannon Ball Suit with Cape and Collar Minifigure, checked as a whole figure ×1

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

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