Desk Toys Rocker Creative Phone Holder Rotary Swing Balance Ball Electronic Perpetual Motion Machine Desktop Decoration

MultipurposeIt also has more uses waiting for you to discover such as increasing the number of steps cell phone holders etc. Keep swinging: It will keep swinging until you stop it (turn off the power by 4 AA batteries or USB connection). Manufactured by Younar. Teaching toysChildren's educational physics science toys show the principles of conservation of momentum and energy. Gifts and ornamentsIt is not only a birthday gift for your children but also a great art for home and office accessories.It also has more uses waiting for you to discover such as increasing the number of steps cell phone holders etc. Material: metal + plasticsize: about 19*10.8cm/7.48*4.25in.