Meffert's Gear Ball - The Original Spinning 3D Brainteaser from Recent Toys - Travel Friendly Fun for Ages 9+ Dive into a world of intricate gears and rotational challenges with Meffert's Gear Ball! Designed by the legendary puzzle maker Uwe Meffert, this dynamic 3D puzzle combines the allure of a classic twisty puzzle with the mechanical intricacies of a clock. Can you twist the ball until you have a solid color on each side? The Gear Ball is a work of "Puzzle Art": a combination of intriguing construction, enjoyable play, and smooth movements. A full rotation takes a dozen 90-degree turns! Challenge your mind, dazzle your eyes, and gear up for a brain-teasing adventure with Meffert's Gear Ball. Perfect for puzzle enthusiasts, collectors, or as a unique gift.