Newtons Cradle Steel Balance Balls Physics Science Pendulum - Fun Child Development Educational Desk Toy
7 reviews

FEATURES:


Balance Balls are a classic desk toy
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


SPECIFICATIONS:


Material:
Metal
Product Dimensions:9 * 7.5 * 9.5CM, ball diameter 1.0CM
Net weight:
95g

保証

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