CHOP MALL Newton s Cradle Balance Ball Pendulum Science Desk Toy Physic Psychology Educational for Office Desk Decor Black Base Small Style

Newton's Cradle Balance Balls has 3 size, Now this is the smallest one. We will update other two types in the future. Balance Balls are a classic desk toy. Also known as Newton\'s Cradle, the clacking of the steel balls will keep you entertained throughout the day. Pull back one or more of the balls, release them and the same number of balls will swing up on the opposite side. Learning - Newton's Cradle is a classic desk toy. Also known as "Balance Balls", "Newton's Pendulum", "Kinetic Balls" and "Newton's Balls". This office or home Pendulum demonstrates the law of conservation of momentum.