- Easy to play - The same number of balls will swing up on the opposite side and then clicking will go back and forth until it stops... a soothing experience you'll enjoy.
- Great fun, educational physics demonstrator - The Newton's cradle is a great invention for both kids and adults, intellectual and elegant decoration for your room and office
- Easy assembly is required with this simple and elegant structure - Shining Arch frame made of stainless steel, Stainless metal balls hanging on durable Nylon strings， and Vintage plastic base, can be put on your desk, shelf, and more
- Whether you are studying physics knowledge, working on complex analysis, or looking for a delicate gift, this Newton Cradle Balance Balls is definitely what you really want
- Material: the ball is a solid metal ball, and the bracket and the base are plastic