Newton's Cradle Balance Steel Balls Physics Psychology Puzzle Educational Tools Black Home Decoration Desk Art in Motion Toy

$4.05

$11.24

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Function: This device demonstrates the conservation of momentum and energy via a series of swinging balls, which is an excellent educational science gadget.
Reduced Pressure: Suit for both kids and adults, excellent for killing boring time and stress release. It's not only a toy, but also a good desk decor for the office or home.
Great Gift: Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gifts and kids' toys.
Wide Uses: Use newton balls motion as a cool office toy, as a decor item for home, or as a stress buster while you are feeling tired at work. You can also teach your children the conservation of momentum and energy with these swinging spheres. A metal ball pendulum also makes a great gift for a geek or science lover.
Notice: Carefully open and assemble to prevent the line from tangling with the ball. Material: The base is made of durable plastic, the ball is made of metal, a creative toy set for kids.