Gear up for fun with this adorable, motorized robotics kit!This 26-piece introduction to mini machines includes everything needed to build over 15 different robot configurations. The components let kids mix and match axles, wheels, arms, legs, and gears to create itty-bitty bots that walk, roll, crawl, spin, and more! Budding engineers will learn basic mechanical engineering skills as they experiment with gears, axles, movement, and balance. The transparent gearbox allows children to watch the movements of the gears as their little machines work. And because the gearbox doubles as a storage case, Tiny Robots travels easily for after-school activities.Includes a motor and gearbox, robot head, 5 gears, 3 axles, 5 wheels, 2 arms with grippers, 2 elbows, 2 legs, center roller, chassis, and a foldout instruction manual featuring over 15 builds, information, and inspiration.Tiny Robots requires three 1.5-volt button cell batteries, which are included in the kit. If battery replacement is needed, it must always be done by an adult.