Features:
It is a very funny decompression toy that a ball can be used to hit other balls and swing.
Not only demonstrates a pendulum, but also shows the Laws about conservation of Momentum and Energy.
Made of steel material, bright, preservative and not easy to rusty.
As a creative decompression desk toy to amuse people.
Perfect for decorating in the office, home and other indoor places.
Can be a funny gift to your friends, family and children.

Specification:
Condiiton: 100% Brand New
Color: Sliver
Material:  ABS + Steel
Ball Diameter: 1cm / 0.39"(appr.)
Ball quantity: 5 Small Balls
Packing: Carton
Size: (L) x (W) x(H) 8.5 x 7 x 9cm / 3.35" x 2.76" x 3.54" (appr.)

Package Included:
1 x Balance Balls Toy

Notice:
Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering.
Please understand that colors may exist chromatic aberration as the different placement of pictures.