Description: 100% brand new and high quality. Material: Plastic base and steel balls Color: Red and silver Size(LxWxH): Approx.9x7x8.5cm A fantastically relaxing object to have ticking and clicking away at your elbow as you work, rest or play. Sit back and watch the soothing motion of the steel balls swinging back and forth, listen to the gentle clicking as each ball taps each other - no matter how stressed out you are, Newton Balls will have you relaxed in minutes. A classic fun gadget for everyone! Newton's cradle, named after Isaac Newton, is a device that demonstrates conservation of momentum and energy via a series of swinging spheres. When one on the end is lifted and released, the resulting force travels through the line and pushes the last one upward. The device is also known as an executive ball clicker, Newton's balls, or Newton's pendulum. Size Chart: Size(LxWxH): Approx.9x7x8.5cm Package Includes: 1xNewton pool Note: Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size
