Cradle Ball Balance, Swinging Balls, Pendulum Ball Desk Toy Science Physics Gadget Desk Toys for Stress Relief, Office Home Decoratio

$18.50

About This Product :

  • Perpetual Motion Instrument: Fun science gadget that demonstrates the law of conservation of energy and momentum and helps motivate kids interested in science.
  • Easy to Use: Pull one or more balance balls back and release them,and the same number of balance balls will swing up on the opposite side.
  • Relieves Fatigue: The swing of the ball and the clinking sound can also relieve stress when you are tired or bored.
  • Scope of Application: 7.28×4.72×7.87in/18.5x12x20cm.Suitable for home and office,also good gift.
  • After-sale Service: If you have any questions about the product, you can contact us by email, we will give you a satisfactory answer within 24 hours.

Details :

  • Age Range (Description): Kid
  • Item Dimensions LxWxH: 7.28 x 4.72 x 7.87 inches

126 in stock