Newton's Balance Ball, Classic Pendulum with 5 Balls Interesting Science Physics Learning Toys Decorative Gadget for Home Office Desk Decorations

• CLASSIC PHYSICS TOY: Newton's balance ball is a classic physics toy that demonstrates the conservation of momentum and energy.
• PREMIUM MATERIALS: is made of high-quality plastic and strong steel balls, with a long service life, and is a beautiful landscape on the desk.
• EASY TO PLAY: Pull one of the balls back and let go, allowing it to swing forward and collide with the other balls.
• HELP YOU RELAX: When you feel tired from studying and work, quietly watching its fascinating swings, can kill time and help you relieve stress.
• WIDELY APPLICABLE: Not only suitable for home/office decoration but also as birthday gifts and children's toys. And as a kind of educational toy, it can improve children's learning interest in science.

Specification: Item Type: Pendulum Ball Material: Plastic+Steel Ball Weight: Approx. 232g / 8.2oz Assembled Product Size: Approx. 13.5x11.5x14cm / 5.3x4.5x5.5in Purpose: bumper ball pool chaosing pendulum Features: Excellent educational scientific tools, showing the pendulum, the law of conservation of momentum and the law of conservation of energy Package List: 1 x Pendulum Ball 1 x Base Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real as standard.