Description

• Package size: 14 x 12 x 4 cm. Base size approximately 17.5 x 11 cm
• Material: balls are metal, rest of the package is plastic
• Draw back one or more of the balls and release the exact number of balls will sway up on the opposite side and the motion will repeat back and forth until it stops
• Newton's cradle balance balls
• Note: it shows newtons law, but don't expect the balance ball to continuously move left and right, gravity is acting on it.
• Newton's cradle balance balls known as motion balance balls, these steel balls keep you entertained all day long newton's cradle makes a great desktop executive gift draw back one or more of the balls and release the exact number of balls will sway up on the opposite side and the motion will repeat back and forth until it stops... Every action has an equal and opposite reaction, science demonstrated simply and clearly a restful experience you'll enjoy