How many pieces are in the Harley Quinn Cannonball Attack?

Harley Quinn Cannonball Attack contains 425 pieces.

When was the Harley Quinn Cannonball Attack released?

Harley Quinn Cannonball Attack was released in 2018.

LEGO Harley Quinn Cannonball Attack set 70921

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🏛 The LEGO Batman Movie

Set #70921

Harley Quinn Cannonball Attack

Harley Quinn Cannonball Attack is a wildly creative and chaotic vehicle set from the fan-favorite LEGO Batman Movie lineup.

Before you buy

Who it's for: Ages 7+ · Intermediate build Perfect for LEGO Batman Movie fans and younger builders stepping into mid-sized vehicle construction
Build: 425 pieces · about 2 hours Build time is an estimate.
Price: $19.99 list price · 4.7¢ per piece
Availability: Retired at LEGO

★★★☆☆ 3.7 community rating from 115 ratings

Fans love the fun carnival aesthetic and fantastic, rare minifigure lineup, though some note the build can feel a bit specialized for general city layouts.

$19.99

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📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

Harley Quinn Cannonball Attack is a wildly creative and chaotic vehicle set from the fan-favorite LEGO Batman Movie lineup. Bringing to life Harley's bizarre yet deadly carnival-themed assault vehicle complete with a firing cannon and classic clown aesthetics, this set captures the manic energy of Gotham's most unpredictable villain.

This set is perfect for LEGO Batman Movie completionists and fans of Harley Quinn. At 425 pieces, the build offers a fun, quirky afternoon project that results in a surprisingly chunky and playable vehicle packed with personality and unique character minifigures.

Skip this if you prefer traditional Bat-vehicles or sleek city builds. The eccentric, brightly colored carnival style is heavily specialized, making it less versatile for general Gotham City MOCs if you aren't building a dedicated theme display.

✨ New

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🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

425

Pieces

⏱

2.0h

Estimated Build Time

📊

Intermediate

Difficulty

Build Highlights:

Assembling the oversized front cannon mechanism and its launching function
Building the distinct circus-themed truck cab and trailer structure
Using bright red, black, and light bluish gray elements to create Harley's signature aesthetic
Integrating play features like opening doors and rolling wheel assemblies

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

Not enough price history for a trend

B+

Investment Grade

⏳ Retired

As a retired set tied to the popular, critically acclaimed LEGO Batman Movie subtheme, Harley Quinn Cannonball Attack carries solid long-term investment potential. The movie's sets have developed a dedicated following among adult collectors who missed out during the 2017-2018 theatrical window, particularly those hunting for unique villain vehicles. With a relatively modest initial price tag and a retirement status several years ago, sealed copies command a healthy premium on the secondary market. The inclusion of exclusive or highly desirable minifigures further safeguards its value, ensuring it remains a sought-after piece for Batman completionists.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

⚖ Compare Similar Sets

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Compared to standard Batmobiles in the theme, this set leans fully into eccentric villain styling rather than high-tech crime-fighting gear. It shares a similar whimsical yet destructive energy with sets like The Joker Notorious Lowrider (70906), making them fantastic display partners.

4 Minifigures Included

Batgirl, Dark Purple Suit, Yellow Cape, Dark Purple Cowl (3626cpr2096)

Harley Quinn in Cannon Ball Suit with Cape and Collar

6 parts

B+

Featuring four fantastic characters including Batgirl in her dark purple suit, Gentleman Ghost, Crazy Quilt, and an exclusive Harley Quinn in her iconic cannonball suit, this lineup is a major highlight for DC Super Heroes minifigure collectors.

📦 Parts Inventory

Official piece count: 425
Parts cataloged in this inventory: 144 unique parts, 402 pieces
Minifigures: 4

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.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Brick Curved 1 x ...

Part #: 10314 2× Black

Equipment Magnify...

Part #: 10830pat0001pr0001 1× Black

Bar Holder with Clip

Part #: 11090 1× Reddish Brown

Bracket 5 x 2 x 1...

Part #: 11215 2× Red

Bracket 5 x 2 x 1...

Part #: 11215 2× Blue

Brick Curved 2 x ...

Part #: 11477 2× Red

Brick Curved 2 x ...

Part #: 11477 2× Light Bluish Gray

Plate Round 4 x 4...

Part #: 11833 3× Black

Brick 1 x 1 x 3

Part #: 14716 4× Light Bluish Gray

Tile 2 x 2 Corner

Part #: 14719 1× Black

Tile Round 2 x 2 ...

Part #: 14769 1× Light Bluish Gray

Tile Special Roun...

Part #: 15535 1× Red

Plate Special 1 x...

Part #: 15573 2× Dark Bluish Gray

Tile Special 1 x ...

Part #: 15712 1× Light Bluish Gray

Tile Special 1 x ...

Part #: 15712 4× Black

Tile Special 1 x ...

Part #: 15712 2× Red

Plate Special Rou...

Part #: 18674 2× Black

Plate Round Corne...

Part #: 18980 1× Red

Tile Special Roun...

Part #: 20482 1× Trans-Clear

Technic Pin Conne...

Part #: 22961 2× Light Bluish Gray

Tile Special 1 x ...

Part #: 2412b 4× Dark Bluish Gray

Tile Special 1 x ...

Part #: 2412b 2× Light Bluish Gray

Plate 2 x 2 Corner

Part #: 2420 2× Light Bluish Gray

Tile Special 1 x ...

Part #: 2432 2× Black

Brick 1 x 1 x 5 w...

Part #: 2453b 2× Light Bluish Gray

Brick 1 x 2 x 5 w...

Part #: 2454b 2× Light Bluish Gray

Plate Special 1 x...

Part #: 2540 2× Black

Plate Round 2 x 2...

Part #: 2654 8× Light Bluish Gray

Tile 2 x 3

Part #: 26603 1× Red

Technic Pin with ...

Part #: 2780 12× Black

Train Pantograph ...

Part #: 2922 1× Pearl Titanium

Brick Special 2 x...

Part #: 30000 4× Dark Bluish Gray

Brick 2 x 4

Part #: 3001 2× Tan

Brick 1 x 2

Part #: 3004 3× Light Bluish Gray

Brick 1 x 2

Part #: 3004 3× Black

Brick 1 x 1

Part #: 3005 6× White

Brick 1 x 1

Part #: 3005 2× Black

Equipment Camera ...

Part #: 30089b 1× Red

Equipment Camera ...

Part #: 30089b 1× Black

Brick 1 x 4

Part #: 3010 2× Black

Brick 1 x 4

Part #: 3010 3× Light Bluish Gray

Brick Curved 2 x ...

Part #: 30165 2× Black

Plate 2 x 4

Part #: 3020 3× White

Plate 2 x 4

Part #: 3020 3× Black

Plate 2 x 3

Part #: 3021 2× Light Bluish Gray

Plate 2 x 2

Part #: 3022 2× Light Bluish Gray

Plate 1 x 2

Part #: 3023 2× Trans-Orange

Plate 1 x 2

Part #: 3023 5× Black

Plate 1 x 2

Part #: 3023 10× Light Bluish Gray

Plate 1 x 2

Part #: 3023 2× Trans-Yellow

Plate 4 x 6

Part #: 3032 2× Red

Plate 4 x 6

Part #: 3032 2× Dark Bluish Gray

Plate 6 x 10

Part #: 3033 1× Dark Bluish Gray

Plate 2 x 8

Part #: 3034 3× White

Plate 4 x 8

Part #: 3035 1× Dark Bluish Gray

Bar 4L (Lightsabe...

Part #: 30374 3× White

Rock 1 x 1 Crysta...

Part #: 30385 1× Trans-Dark Blue

Brick Sloped 45° ...

Part #: 3040bpr0003 1× Light Bluish Gray

Tile 1 x 2 with G...

Part #: 3069b 2× Black

Tile 1 x 2 with G...

Part #: 3069b 6× Red

Plate Special 3 x...

Part #: 3176 2× Black

Technic Brick 1 x...

Part #: 32000 2× Light Bluish Gray

Technic Axle and ...

Part #: 32013 2× Red

Plate Special 1 x...

Part #: 32028 5× Black

Plate Special 1 x...

Part #: 32028 2× Light Bluish Gray

Technic Brick 1 x...

Part #: 32064a 2× White

Technic Bush 1/2 ...

Part #: 32123b 2× Light Bluish Gray

Technic Beam 1 x ...

Part #: 32316 2× Black

Technic Brick 4 x...

Part #: 32324 2× Light Bluish Gray

Brick 1 x 2 x 2 w...

Part #: 3245c 2× Light Bluish Gray

Technic Ball Joint

Part #: 32474 1× Red

Plate Special Rou...

Part #: 32828 1× Black

Brick Curved 1 x ...

Part #: 33243 2× Black

Plate 1 x 8

Part #: 3460 1× Light Bluish Gray

Plate 1 x 3

Part #: 3623 3× Dark Bluish Gray

Brick Sloped Inve...

Part #: 3665 2× White

Plate 1 x 6

Part #: 3666 1× White

Plate 1 x 6

Part #: 3666 1× Dark Bluish Gray

Plate 1 x 6

Part #: 3666 3× Black

Brick Sloped 65° ...

Part #: 3678b 1× Dark Bluish Gray

Sticker Sheet for...

Part #: 36849 1× [No Color/Any Color]

Technic Brick 1 x...

Part #: 3700 2× Black

Technic Brick 1 x...

Part #: 3702 2× Light Bluish Gray

Technic Axle 4

Part #: 3705 1× Red

Technic Plate 2 x...

Part #: 3709 2× Black

Plate 1 x 4

Part #: 3710 4× Black

Plate 1 x 4

Part #: 3710 1× Red

Plate 1 x 4

Part #: 3710 1× Light Bluish Gray

Technic Bush

Part #: 3713 1× Light Bluish Gray

Plate 2 x 6

Part #: 3795 1× Blue

Steering Stand 1 ...

Part #: 3829c01 1× Black

Technic Brick 1 x...

Part #: 3894 1× White

Cone 2 x 2 x 2, O...

Part #: 3942c 1× Black

Cone 2 x 2 x 2, O...

Part #: 3942c 1× White

Plate 6 x 6

Part #: 3958 2× Dark Bluish Gray

Dish 4 x 4 Invert...

Part #: 3960pr9992 2× White

Animal, Rodent, R...

Part #: 40234 1× Light Bluish Gray

Plate Round 2 x 2...

Part #: 4032a 3× Reddish Brown

Plate Round 2 x 2...

Part #: 4032a 1× Dark Bluish Gray

Seat / Chair 2 x ...

Part #: 4079b 1× Reddish Brown

Windscreen 2 x 6 ...

Part #: 4176 1× Trans-Brown

Plate Special 2 x...

Part #: 41862 1× Light Bluish Gray

Technic Pin 1/2 w...

Part #: 4274 12× Blue

Brick Sloped 33° ...

Part #: 4286 2× Light Bluish Gray

Technic Axle Pin ...

Part #: 43093 4× Blue

Equipment Weapon,...

Part #: 4349 2× Red

Wedge Plate 4 x 4...

Part #: 43719 2× Dark Bluish Gray

Hinge Plate 1 x 2...

Part #: 44302a 1× Light Bluish Gray

Hinge Plate 1 x 2...

Part #: 44567a 1× Dark Bluish Gray

Plate Special 1 x...

Part #: 4510 2× Light Bluish Gray

Pneumatic T-Piece...

Part #: 4697b 2× Light Bluish Gray

Dish 2 x 2 Invert...

Part #: 4740 1× White

Dish 2 x 2 Invert...

Part #: 4740 1× Red

Dish 2 x 2 Invert...

Part #: 4740 1× Black

Part #: 55981 4× Light Bluish Gray

Tyre 37 x 18 R Ba...

Part #: 56891 2× Black

Tyre 30.4 x 14 VR...

Part #: 58090 2× Black

Panel 1 x 6 x 5

Part #: 59349 1× Light Bluish Gray

Technic Axle 5.5 ...

Part #: 59426 1× Dark Bluish Gray

Technic Axle Conn...

Part #: 59443 3× Light Bluish Gray

Brick Arch 1 x 3 ...

Part #: 6005 4× Black

Bar 7 x 3 with Do...

Part #: 6020 1× Black

Plate Special 1 x...

Part #: 60470b 2× Light Bluish Gray

Plate Round 4 x 4...

Part #: 60474 3× Black

Plate Round 4 x 4...

Part #: 60474 6× Red

Brick Special 1 x...

Part #: 60476 2× Black

Plate Special 1 x...

Part #: 60478 2× Dark Bluish Gray

Door Frame 1 x 4 ...

Part #: 60596 2× Black

Door 1 x 4 x 6 wi...

Part #: 60623 2× Dark Blue

Brick Curved 1 x ...

Part #: 6091 2× White

Brick Curved 1 x ...

Part #: 6091 2× Dark Blue

Plate Special 1 x...

Part #: 61252 1× Dark Bluish Gray

Plate Round 1 x 1...

Part #: 6141 4× Trans-Yellow

Plate Round 1 x 1...

Part #: 6141 20× Light Bluish Gray

Plate Round 1 x 1...

Part #: 6141 1× Black

Plate Round 1 x 1...

Part #: 6141 4× Trans-Light Blue

Turntable 4 x 4 S...

Part #: 61485 1× Black

Container Box 2 x...

Part #: 61780 2× Green

Plate Special 4 x...

Part #: 6180 1× Dark Bluish Gray

Brick Round 4 x 4...

Part #: 6222 1× White

Panel 1 x 1 x 1 C...

Part #: 6231 2× White

Panel 1 x 1 x 1 C...

Part #: 6231 1× Dark Bluish Gray

Technic Pin Conne...

Part #: 62462 4× Light Bluish Gray

Technic Pin Conne...

Part #: 62462 2× Black

Cylinder Half 2 x...

Part #: 6259 2× Black

Tile 1 x 3

Part #: 63864 2× Light Bluish Gray

Tile 1 x 3

Part #: 63864 1× Black

Equipment Telesco...

Part #: 64644 4× Black

Flame / Headwear ...

Part #: 64647 1× Trans-Orange

Equipment Dynamit...

Part #: 64728 1× Red

Technic Axle 3 wi...

Part #: 6587 1× Dark Tan

Tile 1 x 6 with G...

Part #: 6636 1× Black

Brick Round Corne...

Part #: 85080 2× White

Brick Special 1 x...

Part #: 87087 2× Light Bluish Gray

Panel 1 x 2 x 3 [...

Part #: 87544 2× Trans-Brown

Panel 1 x 2 x 2 [...

Part #: 87552 1× Black

Brick Wedged 2 x ...

Part #: 87620 2× Black

Part #: 92262 1× White

Door 1 x 3 x 2 Ri...

Part #: 92263 1× White

Hinge Plate 2 x 2...

Part #: 92582 1× Light Bluish Gray

Plate Special 1 x...

Part #: 92593 3× Light Bluish Gray

Technic Steering ...

Part #: 92906 2× Dark Bluish Gray

Brick Arch 1 x 6 ...

Part #: 92950 2× Black

Vehicle Body, Whe...

Part #: 93587 1× Red

Brick and Axle Se...

Part #: 96874 1× Orange

Tile Round 1 x 1

Part #: 98138 2× White

Tile Round 1 x 1

Part #: 98138 5× Trans-Clear

Plate Special 1 x...

Part #: 98263 1× Light Bluish Gray

Brick Special 1 x...

Part #: 98283 4× Medium Nougat

Weapon Batarang

Part #: 98721 1× Yellow

Pneumatic Hose Co...

Part #: 99021 2× Dark Bluish Gray

Plate Special 2 x...

Part #: 99206 2× Black

Bar 1 x 12 with 1...

Part #: 99784 1× Light Bluish Gray

The parts inventory provides a healthy mix of light bluish gray plates, black structural elements, and useful Technic pins, alongside specialty red and white bricks great for custom vehicle builders.

🛒 Where to Buy

eBay

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💎 Notable Parts

Light Bluish Gray Plate Round 1 x 1 with Solid Stud (20x) $1.00

Black Technic Pin with Friction Ridges Lengthwise and Center Slots (12x) $1.20

Light Bluish Gray Wheel 18 x 14 with Pin Hole, Fake Bolts and Shallow Spokes (4x) $3.00

Red Plate Round 4 x 4 with Pin Hole (6x) $1.80

Est. BrickLink Part Value

$7.00

💡 MOC Potential

🚗 Custom circus-themed trucks or carnival parade floats for a city amusement park

🤖 Gotham rogue gallery armored transports and heavy riot vehicles

🏙 Steampunk or festival-style mobile command bases using the unique chassis parts

Community Insights

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Inventory Statistics

145

Unique Parts

425

Official Piece Count

402

Cataloged Inventory Pieces

Minifigures

Spare Parts

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.

Inventory Version: 1

Missing a piece? Use the Missing Piece Checker.