Build & Roll Marble Run
Build & Roll Marble Run
336 pieces · A compact building challenge
Ages 6–12 · Build, test, and rebuild.
Small micro blocks for detailed assembly. No batteries needed.
Free standard shipping to the USA, Canada, UK, Australia, Germany & France. Savings apply automatically in your cart.
Delivery information · Returns & refunds
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Sample reviews — layout preview
Alex
Small pieces, a satisfying build. We took our time assembling the track together and enjoyed the first roll.
Jamie
The best part was changing a turn and testing the route again. A hands-on project for a builder who likes detailed assembly.
Taylor
A compact set for a shared afternoon project. We sorted the little blocks first, built together, then took turns sending the balls down.
Start with a few blocks. Add a curve, a slide, and a funnel. Piece by piece, your child creates a track they can test—and change.
When the ball rolls through something they built, the next question comes naturally: what could we try next?
Know your set
This is a compact micro-block construction set. The blocks are small; close-up photos can make them look larger than they are.
Choose it for a builder who enjoys connecting little pieces. It is not a large toddler-block set. Compatibility with DUPLO or other building-block systems is not guaranteed.
Small-parts warning: contains small parts and balls. Not suitable for children under 3 years. Keep loose pieces away from younger children.
What arrives
The set arrives ready to assemble. The storage/play mat is an optional accessory, sold separately.
Clear a flat surface and sort the little pieces before building. Follow the assembly guide, and have a grown-up help with careful connections where needed.
Build one stable route first. Then release a ball and watch where it travels.
See the play in motion
Watch the short demonstration for a closer look at connecting the pieces and testing a route.
Demonstration layouts may differ. Your order is the 336-piece micro-block set described above.
Choose with confidence
A hands-on activity for ages 6–12 who enjoy detailed assembly, following a plan, and working through a building challenge. Adults can join in for the first build.
If you are looking for large, easy-grip toddler blocks, choose a different style of toy. This set uses small micro blocks and contains loose balls.
After the first track
Adjust a turn, check that the track is supported, and test the ball again. Talk about what changed and where the ball went.
One person picks the next section; the other tests the route. Keep the loose pieces together between builds so the next session starts smoothly.
Free standard shipping to the USA, Canada, United Kingdom, Australia, Germany, and France. Delivery estimates are shown at checkout.
Read our return eligibility and refund terms before ordering. If a piece is missing or an item arrives damaged, contact us with your order number and photos so we can help.
A different turn can create a whole new challenge. Invite your builder to experiment, adjust a section, and test the route again.
The supplier recommends ages 6–12. This micro-block set contains small parts and balls and is not suitable for children under 3 years. Keep loose pieces away from younger children.
No batteries are required. Build the track, release a ball, and watch it roll through your creation.
Yes. Follow the included instructions to build your first track. A grown-up can help younger builders get started, then invite them to test and adjust their own routes.
No. These are micro-sized ABS plastic blocks for careful assembly. View the gallery close-ups to see the small pieces before choosing the set.
Read our store FAQ and refund policy before ordering. For a question about this set or your order, contact us.
