Educational Games -Action & Reflex Games Decorative Items Highlights Generic Brand Action & Reflex Games Decorative Items Description: Perpetual Motion, a piece of rotating magnetic craft gadget for your desktop desktop Powered by 4pcs AA batteries, lightly push the device, it will continue to spin until you stop or turn it off Children's education physics science toy, the principles of energy conservation of momentum and energy Great works for home or office desktop ornaments, also Christmas gift Christmas present for your kids Material: Metal, Plastic Color: Multicolor Assembled Size: (L*W*H): approx 22.5*11*24cm/8.85*4.33*9.44inch Package includes: 1 set of perpetual motion (batteries are not included) Note: Due to the manual measurement, please allow some differences in size 1- 5mm