Motion Toy Newton'S Cradle Balance Balls Physics Classic Science Mini Fun Desk Toy

Highlights

• Metal; Made of stainless steel with smooth surface.
• Shows Newton's law of conservation of energy, novel and interesting.
• Useful tool to relieve stress, spend boring time, or teach student in physic.
• You can put it on your office desk or your home desk or on your shelf. It will be cool desk toy.
• A great gift for children, arouses and develops their interest in physics.