["Newton's Shot Put Cradle Steel Balance Balls Physics Science Pendulum Toys Desk Decoration\n\nDescription:\n brand new, high quality\nFeatures:\nNewton pendulums are classic desk toys; It is also known as ball game pendulum, Newton's Cradle, Newton's cradle, Perpetuum mobile.\nFashion, modern design, metal craft gift.\nNewton's Cradle is a timeless, classic desktop science \"toy\" that is the perfect blend of science and art, Suitable for kids to experience the fun of mechanics playing this fun device.\nIf one of the outer stainless steel balls in the metal frame is struck against the others, the center balls seem to remain unmoved. Only the ball at the other end of the chain pushes off. If there are 2 striking balls, the center ball remains , but the two opposite balls swing out.\nVersatile. You can use it as a physical device, office equipment, stress killer, and as a nice gift and desk decoration, nice gift for a friend.\n\nSpecifications:\nItem Type: Newton's Shot Put Cradle\nMaterial: Stainless steel\nSize: approx.11x10.7x14cm / 4.33x4.21x5.51in\nColor: Silver\nQuantity: 1 Pc\n\nNote:\nTransition: 1cm = 10mm = 0.39inch.\nPlease allow 0-1cm error due to manual measurement. Pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage Includes:\n1 x Newton's Shot Put Cradle (other accessories demo in the picture is not included.)"]