BNF Newtons Cradle Glass Balance Balls Gadget Desk LED Light Wave Home Black Decorative Showpiece - 12 cm  (Plastic, Black)

Description:LED Pendulum Wave ball, so some simple assembly work is needed before using it. After you have assembled it, you will play it with a great sense of accomplishment.To make the glass balls move,just push it slowly with the supplied strip, then gently loosen it.Office Desk Decor,Show some character and express your love for science and physics with this decorating your office space.Install batteries, it will light up on the base board, and the balls will look colorful and beautiful, very attractive, need 3 AA Batteries(Not Include).Quality materials , made of durable plastic, also good for birthday gift and kids toy.Specification:Material: PlasticSize: 15x15x11.5cm/5.91x5.91x4.53 inchPackage Includes:1 Piece Newton Cradle Balance Ball Led