The classic desk accessory is art-in-motion
A classic desktop toy for home of office.
Best and useful gift for children to arouse his/her interest in physics.
Great novelty amusement toy for science buffs.
Pull one marble back, let it go and watch each end marble bang back and forth for endless fascination.

Technical Details

Product Details

Package Dimensions
Width : 5 inch
Height : 3.58 inch
Length : 6.5 inch

Shipping Weight: 12 ounce (View shipping rates and policies)

ASIN : B01DQD2RKS

Product Description

Technical Details Product Dimensions: 6.2*4.5*3.3 inches Strings are made of light nylon line The bottom part is made of ABS plastic The balls is made of stainless steel. Just lift the ball and let it clack against the others. You will be relaxed as the balls swing back and forth using their own kinetic transfer of force. This is a great little lesson in physics