Newton Cradle Balance Steel Balls School Teaching Supplies Physics Science Pendulum Desk Toy Gifts Home Decor

Specification：
100% new and high quality
Material：Steel
Color：As shown
Size：
S：9*7.5*9cm
M：13.5*11.5*14cm
L：17.5*14.5*18cm

Features:
Balance Balls are a classic desk toy. Also known as Newton/'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.

Package include :
1 x Newtons Cradle Steel Balance Balls Physics Science Pendulum

Note：
There is 2-3% difference according to manual measurement.
Please check the measurement chart carefully before you buy the item.
Please note that slight color difference should be acceptable due to the light and screen.