Home Living Room Office Decoration Newton Balance Balls Crafts Steel Ball Toy

Demonstrates Newton's Laws of Motion,Own your special piece of science and explore significant values of physics.
The balls continue in perpetual motion FOR ONLY 15-25 SECONDS due to the resistance of the air and friction.
Great science gift idea for your sweetheart at birthday, Christmas, Children's day and other festivals.
A perfect decoration and teaching tools.
Features:

Name: Desktop Decoration
Material: plastic
Weight: 200g
Size: 9x7.5x9.5cm
Estimated delivery time：About 10 business days.We will use standard shipment for the orders. Normally it may need about 10 days, but sometimes please note: Delivery times are as provided by our carriers and are estimates only. Delays may occur during peak periods, and due to factors outside the carriers control.