Kinetic Desk Toy

Features: Great educational physics science toy to help kids understand the principles of conservation of momentum and energy in a easy way.Powered by 4pcs AA batteries, move lightly, it will keep going on rocking around until you stop it or power off. (Batteries are not included ...Features: Great educational physics science toy to help kids understand the principles of conservation of momentum and energy in a easy way.Powered by 4pcs AA batteries, move lightly, it will keep going on rocking around until you stop it or power off. (Batteries are not included)Unique semi-arc frame and stylish design, perfect for home and office decoration.Perfect gift for your children, friends or coworkers.

Made of high quality metal and plastic material, tough and durable to use. Specification: Material: Metal + Plastic