The perpetual motion toy can be used as a desktop adornment. Made of premium materials, for long time using, can be used for room creative decoration. With cupid swinging design inside, wonderful as home decoration, collection, also a nice gift choice. Features - Color: As shown -Material:Plastic, metal - Size: 22.00X20.00X10.50cm/8.65X7.86X4.13in -Power supply:4 x AA batteries(not included) -Adoption of , this perpetual motion toy is , can be used for long time. -Also great for those who are passionate about science or for demonstrating the laws of physics in the science classroom. -Beautiful and generous shape, swing is full of creativity, full of relaxed feeling. -Gently push the outer ring, this desk toy will swing , and the inner ring will also swing together irregularly. -Funny and creative, can be given as a great gift choice to relatives and friends. Package list: 1 x Perpetual Motion Toy(Battery not included)