1 Piece Early Fun Educational Desk Toy Gift Newtons Cradle Steel Balance Ball Physics Science Pendulum Desk Decration T0427 P30

1 PC Early Fun Educational Desk Toy Gift Newtons Cradle Steel Balance Ball Physics Science Pendulum Desk DecrationDescription:Balance Balls are a classic desk toy

Also known as #39;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

This set of balance balls is fun for the office and makes a great desktop gift

The apparatus usually consists of an odd number of identical steel balls each suspended by a bifilar suspension from a sturdy frame

Product Dimensions:9 * 7 5 * 9 5CM, ball diameter 1 0CM Net weight:95g Package: 1 x Newtons Cradle Steel Balance Balls Physics Science Pendulum