Light Up Newton’s Cradle Pendulum Balls

These glass balls are environmentally friendly, non-toxic, and can be used for a long time.
Excellent educational science gadgets. It not only shows the pendulum, but also shows the law of conservation of momentum and energy.

Install the battery, and it will light up on the substrate, giving the ball a  colorful and beautiful look.

Very suitable for home decoration, study or desk decoration accessories. It is also suitable as birthday gifts and children’s toys.