OSSDE Gear Building Toy Set 4-Dimensional Training Educational Toys Gear Rotating Puzzle Clock

❇️14.5cm x 13cm x 2cm❇️Puzzles and solutions❇️5 levels of difficulty ➖🛸Mechanical Incredible: The cause-effect relationship between rotation of the gear and overall rotation stimulates curiosity and creativity, stimulates understanding of basic mechanical principles➖🛸Our durable kids gear toys will enjoy a better playing experience. Made of durable polystyrene that resists wear and falls and is durable➖🛸Our gear toys provide hands-on practice, improve planning and layout ability, comprehensive analysis, logic reasoning ability, hand and eye coordination, and promote children's cognitive development➖🛸Create lasting memories with your kids while strengthening your emotional connectivity with these gear toys➖🛸5 levels and 24 levels of brainstorming teach logical reasoning from entry level to expert level. Each challenge comes with a helpful answer to help you build confidence and promote progress