Kinetic Art Perpetual Motion Machine，Non-Stop Energy Ball Desk Toys，Balance Kinetic Energy Model,Battery Powered Perpetual Motion，Science Physics Gadget， Desktop Decoration Toys for Kids and Adults

Description

Description:-Perpetual Motion Machine: The base of the machine is wood,the top is plastic - Perpetual Motion simulator Dimensions about 22x20x10 cm (estimated)- Physics Desk Toy is Battery Opertated,you need put battery in the back of the top platform.Package：1 set kinetic art perpetual motion machine(1x round plank+1x square plank+2x iron frame+5x iron ball) And 1 instruction that show you how to adjust it if it not work suitable. caution1. Due to manual measurement, please allow 1~2cm difference, please don't mind .2. Due to the difference in light and screen, the color of the product may be slightly different from the picture;