Description: 100% brand new and high quality. Material: Plastic, Glass Color: As pictures shown Newton's cradle, named after Isaac Newton, is a device that demonstrates conservation of momentum and energy via a series of swinging balls. When one on the end is lifted and released, the resulting force travels through the line and pushes the last one upward; or pushes one side, all balls will swing together in a line. The device is also known as an executive ball clicker, Newton's balls, or Newton's pendulum. Install batteries, it will light on the base board, and the balls will look colorful and beautiful. Great for home ornament, study or office desk table decor accessories, etc. Also good for birthday gift and kids toy Specification: 4 Pieces AA (1.5V) Batteries Are Needed to Liht Up Size Chart: L x W x H: Approx 11.7 x 15 x 15cm/4.61 x 5.91 x 5.91inch Package Includes: 1 Set Newtons Cradle Balance Balls Toy (Batteries Are Not Included) Note: Due to the manual measurement, please allow 1-5mm differences in size Due to the light and screen difference, the item's color may be slightly different from the pictures. Please understand
