_____________Davidsons Collection has dedicated to manufacture professional Newton's cradle balance balls for over 6 years

_____________ Davidsons Collection Newton's cradle is a device that demonstrates conservation of momentum and energy using a series of swinging spheres.
When one sphere at the end is lifted and released, it strikes the stationary spheres, transmitting a force through the stationary spheres that pushes the last sphere upward.
The last sphere swings back and strikes the still nearly stationary spheres, repeating the effect in the opposite direction. So amazing!
It is also known as Newton's Balls or Executive Ball Clicker.

Great Size: 7.3 x 7.1 x 4.7 inch
Base material: Real Wood

Features:
Design the most perfect frame size, real wooden base combined with the weight of the balance ball to achieve longer-lasting mutual impact.
For every action there is an equal and opposite re-action.Inspired us to better understand the concept of conservation of momentum.

Suitable for Many Occasions:High quality newtons cradle 5 balls for office, science experimental classroom, science fair decoration, Perfect for Birthday, holiday, party, wedding anniversary ect.

Notes:
Use under the adult's Supervision.Do not keep the small parts of the toy in mouth preventing the baby swallow it.