Features: 
Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy.
Includes steel balls, plastic frames and base.
Often used as a toy.
Easy to install and uninstall.
High class material and has very good apperance.
Pendulum ball.

Specification：
Shape: Geometric
Material: Metal, ABS
Color:as shown
Occasions: Office, Home, Table Desk
Features: Funny, Creative, Room Decor, Desk Ornaments

Notes:
Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
Please allow slight dimension difference due to different manual measurement.

Package Contents:1 x pendulum ball