- ABS
- BALANCE DESK DECORATION: The bumper is a clever device that not demonstrates a pendulum, but also newtons cradle pendulum shows the laws of conservation of momentum and energy.
- PHYSICS MECHANICS SCIENCE TOYS: The unique exclusive contemporary design makes perpetual motion desk toy attactive and eye-catching. Having a fun with the newton's cradle.
- BALANCE BALLS DESK TOY: These swinging balls will keep you occupied for hours at work and when feeling tired of studying and working, you can stir balls to hear the clinking sound to ease.
- DESK TOY : Perpetual motion toy can be used as decorative ornament for home and office or gifts for friends or someone you love. As birthday gifts, anniversary gifts or Christmas gifts.
- PLASTIC NEWTON : Newtons cradle balance balls can be applicable to desk and household decoration and also can be as a birthday gift. Can help your relax down and enjoy the time.
