Cradle Ticking Ball Collision Ball Pendulum Ball Cradle Ball Physics Pendulum Physical Science Toy Educational Ball Science Toy Learning Toy Study

◆ [Dimensions (L x W x H)]: Approx. 9.1x7.6x9.5cm / 3.6x3.0x3.7in ◆ [Number of balls]: 5 metal balls ◆ [Collision ball]: A small and inexpensive collision ball that is ideal for student experiments. You can perform experiments such as momentum conservation and velocity conversion for elastic collisions of the same mass. ◆ [Quality Assurance] Our store strives to provide customers with a safe and enjoyable shopping experience. In the unlikely event that there is a defect, damage, color or type difference due to an inconvenience or our error, please contact us by email and return it to us, cash on delivery. We will promptly replace it. ◆[Contents]: 1 piece function: 1. Educational science tool illustrates the law of conservation of momentum and the law of conservation of energy. 2. This is a very interesting decompression toy, you can use the ball to hit other balls or swing. 3. The swing balance ball is made of high-grade plastic and sturdy steel ball, making it durable. 4. Stress relief toys are very suitable for home decoration, study and desk decoration. 5. The wrought iron pendulum ball is also suitable as a birthday gift or children's toy. specification: Item type: pendulum ball Material: plastic + wrought iron Weight: approx. 87g/3.1oz Product size: approx. 9.1x7.6x9.5cm/3.6x3.0x3.7in Package list: 1x base 1x bracket