Newton's Cradle Desk Table Decor Metal Pendulum Balance Ball Physics Science

This classic desktop toy provides you many benefits and entertainments, is suitable for various locations such as house or office, and is an intriguing device that not only demonstrates pendulum motion, but also helps to show the laws of Conservation of Momentum and Energy. Whether you are studying physics knowledge or looking for a delicate gift, this balance ball is definitely what you really want. Specifications: Size: 7.1x4.7x7.1 inch Material: Solid Glass base +Stainless steel balls & structure Occasions: Daily use, Education supplies, Psychotherapy, Birthday present, Business gift, office decor Package: 1x Frame with 5 balls 1x Glass base