Randolph Physics Science Accessory Desk Toy Newton"s Cradle Steel Balance Ball

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. Please note, this item ships from an international seller. Expected delivery is 5-15 days Note; 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand.Make sure you do not mind befor you bid. Please allow 2-3mm differences due to manual measurement 2.The product in the picture maybe larger than actual one. Please check the size befor bidding!!! ; 1 inch = 2.54cm or 1cm = 0.393 inch High quality in EU and US quality standard

Made of high quality products, 100% brand new A perfect gift for birthdays,Christmas If you want more details about this product, you can contact our customer service, we will patiently answer for you