Description:
This device demonstrates demonstrates conservation of momentum and energy via a series of swinging balls. When one on the end is lifted and released, the resulting force travels through the line and pushes the last one upward; or pushes one side, all balls will swing together in a line. Swing one, two or three end balls and the changing colors will keep you entranced for hours with multiple color changing modes from blinking to cascading. You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy.
Specification:
Condition: 100% brand new
Material: Glass + fishing line + plastic base
Color: As pictures shown
Battery: 4 x AA batteries(not included)
Size: approx. 12 x 9 x 12cm / 4.72 x 3.54 x 4.72inch
Package Weight: approx. 185g
Package Included:
1 x Balance Balls Toy
Note:
1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering.
2. Please understand that colors may exist chromatic aberration as the different placement of pictures.