REVOLVING ARTThis sculpture has a ball or dolphin is surrounding by the ring that rotate like a ferris wheel, perfect revolving art for your desk. GREAT ORNAMENTThis is the perfect desk toy to impress your colleagues and customer, great for home ornament, study or office desk table decor accessories. BEST GIFT IDEALDesign is stylish and innovative, perfect gift for those enthusiastic about science. FUN TOYYou could experience the fun of mechanics, it will keep you and anybody else who watches it mesmerized for hours. EASY TO USEThis balance ball keeps going and going until you stop it or power off. Home Decoration This is the perfect desk toy to impress your colleagues and customer, great for home ornament, study or office desk table decor accessories. Specification Material: Plastic + Iron Color: Sliver Type: A603 Size: 11 x 24.5 cm / 4.33 x 9.65 inch(appr.) Package Included: 1 x Electric Wiggler Swing ball Easy to Operate This balance ball keeps going and going until you stop it or power off.