Product Name:All Black Newton Pendulum Material:Stainless Steel+Plastic Size:L:18*15*18cm,M:13.5*11.5*13.5cm Color:Black Features 1、This Is An Interesting Toy And A Good Teaching Prop. 2、It Shows The Rules For Conservation Of Momentum And Energy. 3、It Is Not Only A Pendulum, But Also A Stress Relief Ornament. 4、This Represents People'S Pursuit Of Perfection. 5、It Is The Best Gift For Relatives, Friends, Teachers, Classmates And Lovers. Package Content:1 Pcs Newton Pendulum Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. strong three-dimensional ,small in size, light in weight, easy to place
