Electronic Perpetual Motion 11*20 cm Bilateral Rotation Physical Swing Toy Newton”s Cradle for Office Home Decoration

About This Product :

• Made of high quality material, safe and smooth to touch.
• Install the battery then gently sway by finger,the device will start to rotate, Demonstrating the principles of energy and conservation of momentum.
• Touch the top to stop the toy,Powered by 4 x AA batteries (not included),remove the battery when long time no use.If you have been looking for a special desk toy for a long time that you must be like to have one.
• Simple and modern style with much fun, it is also a piece of art on your desk.
• Using durable plastic as base and sturdy stainless steel as frame it is best decoration for your room,office,instrument room etc. Perfect gift for your friends or family, a good craft ornament.