Sell Creative T-Shaped Newton Cradle Balance Ball Physical Pendulum Smooth Summer best price

Characteristics: 1. Ease of mind: when you are tired of learning and work, stir the ball and listen to jingles to soothe. - unique design: swing a ball backwards, release it, observe kinetic energy to make the ball swing the same distance across. - material: this product adopts ABS base, metal support, ball, very texture. - conservation of energy: a clever device that not only shows a pendulum, but also the laws of momentum and conservation of energy. - working principle: when a ball at the end is lifted and released, the force generated passes through the line and pushes the last ball upward. Explanation: these swing balls are suitable for desk and home decoration and can also be used as birthday gifts. Specification: material: ABS, metal color: silver size: L: 180x180 x 150mm M: 135x115 x 140mm S: 75x90 x 95mm (optional) packaging containing: 1x newton pendulum note: the picture may not reflect the actual color items due to differences in the display. We make sure the style is the same as shown in the picture.