LEZKIDOL DIY Gear Building Block Assembly Toy for Kids 3 Year Old and Up, Dinosaur Themed Interlock Gear STEM Toy Set for Boys Girls Age 3 4 5 6

DIY Gear Building Toy Playkit comes with 11 pcs of gear and a base; designed with vibrant, appealing dinosaur theme and colors, encouraging little one to engineering concepts in a creative and hands-on way

Gear Design that Sparks Creativity: features as DIY assembly, kids are encouraged to snap gear pieces as an united machanism and observe how gears work to move

Learning Toy that keeps Boys Girls Entertained & Engaged for a While: children will gain an understanding of mechanical principles such as gear rotation, balance, and movement

Two Modes of Gear Movement: the DIY gear building toy uses 3 AA batteries to power the moving gears, while it can also be manually operated with your little one's hand crank on the base

Made of ABS plastics; Age grade 3 Years old and up; Conpliance Standard: US Toy Safety CPSIA, ASTM