Feature

●Perfect for home decoration, study or office desk table decoration accessories. Also suitable for birthday gifts and childrens toys
●These glass balls are eco-friendly, non-toxic and durable
●A great educational science gadget. Not only does it demonstrate pendulum demonstration, but it also demonstrates how much momentum and energy conservation
●Science Toys When you get tired of studying or working, you can feel soothing by stirring the ball and hear the sound of a jingling jingling
●When you install the batteries, it will light up on the board and make the ball looks colorful and cute and very attractive


Description

This device demonstrates the amount of momentum and energy conservation through the ball swing. Lift one end and release it, the force will pass up on the line and push up the last end. Or just press one side, all balls will swing continuously. Shake one of the two or three of the end balls to change colors and youll be fascinated for hours of color change, whether blinking or flowing like a waterfall. Can be placed on a desk or home office table or shelf. Perfect for desktop toys.

Material: Glass + Fishing Line + Plastic Base
Battery: 4 x AA batteries (sold separately).
Size: Approx. 4.7 x 3.5 x 4.7 inches (12
Package Weight: Approx. 6.3 oz (185 g).

PACKAGES
1 x Balance Ball Toy

Note
1. Due to manual measurement, please allow 1-2cm error and do not mind before order.
2. Please understand there may be color difference due to different placement of pictures.
3. Base color will be sent randomly, please check before ordering.