Bola de péndulo de equilibrio 9.5x9x7.5 cm Negro/Vino Rojo

Resumen

• 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.
• 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.
• 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.
• 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.
• Educational Significance: Balls toy is also a perfect school education gadget, which can guide children to understand meaning of energy conservation.