Rotating Art This kinetic sculpture has a ball or dolphin surrounded by a ring that spins like a makeshift wheel. . Newton's clock Newton's cradle is not a precision device. It is more of a decorative and educational object, conserving energy, conserving momentum and friction through a series of oscillating balls. . Psychotherapy If you are bored, Newton's cradle is with you. If you need to calm down, shake it and stay calm. When you want to take a break while studying or working with Newton's pendulum, you feel relaxed. . Material type The equilibrium sphere is smaller than it looks. Size 22 x 10.5 x 25 cm. The materials are plastic except for bullets. Although everything is plastic (the poles and the base) it's sturdy and hard even after the kids have played with it. . Versatile Ideal for decorating the office, home and other interiors. Daily use, teaching material, psychotherapy, birthday gift, promotional gift. .