Give your child a fun way to develop their motor skills and playtime with the Robotime marble run waterwheel coaster. Featuring a waterwheel that spins round to power a set of inclined planes, this marble run toy is both fun and educational.
Package Contain:
Plywood,English instructions, other accessories without wax.
1. The wax is used to make the gear move smoothly. Don't use it or use candle to replace.