Balance Pendulum Ball Physics Science Metal Office Games Desktop Decoration Toy Games

Feature: 1. Exquisite Production: Each ball has been accurately measured, weight is uniform and consistent, and uniquely selected base and ball are made of high quality materials. 2. Long Swing Time: Classic design, due to the resistance of air and friction, the balance ball can last 15?20 seconds and it lats longer time. 3. Multiple Ways Of Playing: For example, one ball at one end hits neighbor, the ball at the other end hits air, while ball in the middle stays still. 4. Relieve Stress: Balls toy is a charming desk decoration that can not only add beauty to the room, but also relieve your stress when playing. 5. Educational Significance: Balls toy is also a perfect school education gadget, which can guide children to understand meaning of energy conservation. Specification: Item Type: Balance Pendulum Ball Material: ABS plastic, Metal Combined size: Approx. 9.5 x 9 x 7.5cm/3.7 x 3.5 x 2.9in Color: Black, wine red. Package List: 1 x Base1 x Balance Ball