kreiz Cosmos Asteroid Revolving Perpetual Motion(Multicolor)

描述

Perpetual motion, a piece of magnetic revolving art craft gadget for your desk office. Powered by 4pcs AA batteries?push the device slightly, it will keep going and going on rocking round until you stop it or power off. Kids educational physics science toy?the principles of Conservation of Momentum and Energy. Great artworks for home or office desktop ornaments, also birthday gift christmas gift for your children. - Assembled Size: ?L*W*H?: approx 22.5*11*24 cm/ 8.85*4.33*9.44 inchPlastic MaterialAA BatteryWidth x Height: 60.96 mm x 60.96 mmSales Package: Perpetual Motion GadgetSkillset: Creativity & Imagination, Memory Building, General Knowledge, Attention Span Building, Analysis & Critical ThinkingNumber Of Batteries: 4 BatteriesMinimum Age: 3 yearsMaterial: PlasticBattery Operated: YesBattery Type: AAWidth: 60.96 mmHeight: 60.96 mmWeight: 600 g