Come and see our amazing products. With a novel and unique design, you can roll continuously on a smooth surface with a light push, and can also rotate vertically or horizontally. The zinc alloy material will be heavier than the ABS material. It is an interesting tabletop toy. At work, playing with it can relieve your work pressure, and in life, playing with it can relieve your unhappy mood. Pls confirm further with us if any query about packing info, inventory status and time schedule.