






Rainbow Stepper GBC | 1281pcs
Build a Great Ball Contraption that moves balls along a colourful stepped pathway. The exposed gears and axles make the sequence of motion part of the display rather than hiding it inside a housing.
- Colourful stepped ball-transfer route
- Exposed gears and drive axles
- Long mechanical frame
- Visible ball movement through successive stages
Building pieces:
1281
Estimated Build Time:
5-7 hours (note: actual build time varies per builder)
Complexity:
Intermediate
Dimensions (cm):
74cm × 13cm × 17cm
Dimensions (in):
29.13in × 5.12in × 6.69in
Manual Format:
Paper Manual / Digital Instructions via QR Code
Brick Car Merchant proudly offers Free worldwide shipping on all orders.
Quick Dispatch: Your order will be processed and assigned a tracking number within 24 hours.
Shipping Times: Expect your order to arrive within 6-8 days, depending on your geographic location.
Track Your Package: Once your order has a tracking number, you can follow its progress. Visit our Track Your Order page for up-to-date tracking information and to view your package’s journey.
At Brick Car Merchant, we are committed to delivering your purchase quickly and transparently. If you have any questions please contact us.

Follow the balls through each step
Trace the route from the feed tray through the stepped lift and coloured transfer track. The open structure keeps the ball-handling mechanisms at the centre of the display.
Trace the route from tray to track
The feed, lifting steps and coloured transfer section each have a distinct role.

Feeding the first ball
The feed tray gathers the coloured balls at the start of the mechanism's route.

Steps that rise and fall
The stepped lifting assembly raises and transfers the balls through a sequence of moving carriers.

A colourful transfer sequence
The coloured track sections continue the transfer route along the model's raised structure.
Trusted by 10,000+ builders worldwide
See some of the builds from within our community
Why Builders Choose BCM

Always Fresh
Fresh drops, every week. At Brick Car Merchant, our community drives the drops —you can expect sets from sleek supercars to cosmic spacecraft. You demand it, we deliver it. Expect new sets, fresh challenges, and endless ways to build.

Built Different
Done with cheap knock-offs and missing parts? Every Brick Car Merchant set uses precision molds and premium materials, ensuring a flawless fit and a rock-solid build. No gaps, no frustration—just that satisfying, perfect click every single time.

Realistic
Every build is a masterclass. At Brick Car Merchant, you’ll master the mechanics behind the machine, from how a gearbox shifts to how aerodynamics shape an engine. You aren't just following a manual; you're discovering how things actually work, brick by brick.
Your Questions, Answered
Need help? We're always here. Contact us.
Do you ship overseas?
Absolutely! 🌍 We ship worldwide for free - whether you're chilling in California or building bricks in Germany.
All orders include express international delivery - no extra fees, no surprises.
Just sit back, track your package, and get ready to build.
How quick is dispatch?
Pretty fast, actually! 🚀 Orders are usually packed and shipped within 24 hours.
How long does it take for delivery?
Most orders arrive within 6–8 business days, depending on your location.
We use express worldwide shipping, so no matter where you are, your bricks are on their way!
How can I track my order?
Easy! The moment your order ships, you'll get a tracking link straight in your inbox.
Just visit the Track My Order page to check from anywhere, any time!
Do you accept returns?
Yep! Changed your mind? No worries. You’ve got 30 days to return your order - hassle-free.
Just make sure everything’s in its original packaging.
Help! A part is missing.
Don’t worry - we’ve got you. Head over to our Missing A Brick page and we’ll ship out what’s missing, fast.



