Newton's Cradle Balance Ball Physics Science Fun Desk Toy Accessory
Features:? Brand new and high quality.? Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy.? Friction and damping effects are also observed.? Often used as a toy to amuse people.? Includes steel balls, plastic frames and base.? Great gift for everyone.? Size:18cm x 11cm x 14cm - 7.09inch x 4.33inch x 5.51inch.Package Included:? 1 x Balance Balls Desk ToyNO Retail Box. Packed Safely in Bubble Bag