Newtons Cradle Balance Balls,14cm Newton Pendulum Balls,5 Physical Swinging Balls, Science Decompression Pendulum Ornaments Desk Balls Kit for Office Only for children aged 14 and above

• 【High Quality Material】Cradle balanceballs uniquely selected base and ball are made of high quality materials,Each Newtons cradle balance ball has been accurately measured, weight is uniform and consistent, bring you a good swinging experience.
• 【Stress Relief 】When you are tired of work, you can stir the ball to hear the clinking sound to reduce stress.It is an excellent scientific gadget with its own scientific history and exploring the important value of physics.
• 【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. Perfect for decorating in the office, home and other indoor places.
• 【Desk Decor】Physics Science Pendulum Ornaments are perfect for psychology, science and physics , is a good desk decor for office or home, perfect gift for a geek!

Newtons Cradle Balance Balls,14cm Newton Pendulum,5 Physical Swinging Balls, Physics Science Decompression Pendulum Ornaments Toy Desk Balls Kit for Office, Decoration and School Education The diameter of the sphere must be greater than 31.75 millimeters (1.25 inches) or the side length of the cubic component must be greater than 18.33 millimeters (0.72 inches)