Cog Coaster

Race With Crazy Marbles!(Engineering Marvel)Based on real-life lift coaster, Marble Run series will excite your imagination and creativity while building the mechanism. Rotate the crank and watch marbles go crazy down the slopes and turns! That brings you hours of fun and inspiration. (Rewarding Challenge)Highly satisfying and educational building experience. It requires dexterity and imagination but will also improve your understanding of STEM principles. An introduction to kids' motor skills and creativity. A brilliant way to tease your brain. (Ideal gift Home Decor)Perfect gift at any occasion: for quality time shared between family, a birthday present pastime for friends, etc. Detailed design and attractive appearance also make it a delight to eyes. (Non Glue Natural Material)Lightweight models made of natural plywood. Precise laser-cut wood sheets with well-fit parts. Smooth edge, Non toxic materials. No glue needed, easy to assemble together. ROKR ensures you a better building experience.

Warning - California Proposition 65

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

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