Package: 1x Frame with 5 balls 1x Wooden Base Physical principles: Based on the law of conservation of momentum and energy conservation, due to resistance reason, Newton's cradle will not swing forever. Usually, when under normal circumstances, the balls will swing about 15 seconds. But because different force and environment, the swing time will be different.
Warm Prompt: When you use this newton’s cradle, please move it in a horizontal line, so the lines will not be tangled. Please don’t worry, if it was tangled, you could untangle it still, just need some patience.
*Wooden Solid Base: Unlike other Cheap plastic base, this wood one is heavy and elegant, it makes this cradle sturdier, and extend your newton cradle to a longer service life.
*Strong line: Instead of cheap fishing line which other sellers used, our newton cradle use high quality nylon line which is strong enough to not be broken easily.
*More Durable and Rustless: With steel frame and 5pcs high polished smooth steel balance balls, which is more durable and easy to transfer and store more energy when collide.
*Physics Education Toy: This Newton’s cradle balance ball Toy is a good practice of physics in action demonstrates the principles of kinetic energy and conservation of momentum.
*Cool Desk Decor: 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 office or home. You will like it!