Cradle Led Light Up Ball Kinetic Energy Home Office Science Toys Decor

100% New and High Quality A futuristic take on this classic desk accessory. Not only demonstrates a pendulum but also shows the Laws of Conservation of Momentum and Energy Apply to psychology relax your press while you feel tired at working. It could be the great desk toys for office for adults. Package Included: 1 x Cradle LED Light Up Science Toys Type:Decorative Balls Custom Bundle:No Size:12 x 12 x 9cm Balls Material:Frosted Glass Wire Material:Fishing Line Base Material:Plastic