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Experience a hands-on mechanical puzzle that turns gravity and gearing into a playful race. The ROKR Gear Ball Challenge is a 653-piece wooden feat that assembles in about 5 hours and delivers 6 interactive systems across 5 levels of marble tracks. Fully self-powered—no batteries required—the game uses gravity, leverage, and acceleration to propel a marble through gears and ramps. With reinforced wood for durability and an assembled size of 11.6 x 7.7 x 8.1 inches, it’s a compact, long-lasting STEM learning toy for ages 14 and up. The experience culminates in a victory bell and a rising flag, celebrating every solved level. Gift-ready packaging makes it a memorable puzzle for enthusiasts and students alike.
This self-powered, gear-driven marble puzzle sharpens physics intuition and problem-solving with durable wooden construction.
Get yours now and start the 5-level journey today.
Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
US$40
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