Product Name: perpetual instrumentMaterial: Metal + plasticMagnetic swing: like a three-dimensional globe， mounted on four AA batteries section， hand gently moving about， you swing around it without stop， on the desk would be a beautiful landscape is a crosswalks wiggler.Size:approx 23.3cm*10.8cmWeight: 216g(with paper box)Package Included:1 X Perpetual Motion Kinetic Toy(Here is not Including the batteries)