Sehao Fidget Toys Physics Science Accessory Desk Toy Newton"S Cradle Steel Balance Ball Metal and Plastic

Physics Science Accessory Desk Toy Newton's Cradle Steel Balance Balls Feature: 100% brand new and high quality. Quantity:1pcs. Material: metal and plastic. Color: show as picture. Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy Friction and damping effects are also observed Includes steel balls, plastic frames and base Size:9x 7.5x 8.5cm. Net Weight: Approx 90g. Easy and convenient to use. Package Include: 1 x Balance Balls Desk Physics Science Pendulum Desk Toy.

Excellent workmanship, high quality guaranteed, very practical! Made of environmentally friendly materials, environmentally friendly and safer to use! The unique and novel as well as detailed design makes people love it! Everyone wants to have it! A great gift for yourself, family and friends, don't miss it! Let your children in the process of playing with toys to get happy at the same time can exercise hands-on skills and intellectual development!