Kids Physics Science Accessory Desk Toy Newton"s Cradle Steel Balance Ball CreativeFriction and damping effects

Specifications:

• Warning: NO
• type5: Friction and damping effects are also observed
• type2: Toy
• type10: Easy and convenient to use.
• type1: 1 x Balance Balls Desk Physics Science Pendulum Desk Toy.
• Theme: Approx 90g.
• SIZE: 9x 7.5x 8.5cm.
• Material: metal and plastic
• Features: Includes steel balls, plastic frames and base
• Age Range: > 8 years old
• Warning: Be Careful Do not eat