Optical Illusion Fidget Spinner Metal Stress Ball Toys

Material: Made out of aerospace grade aluminum it has a helix-shaped groove milled alongside the whole surface.Every globe has a rotating base equipped with high-quality stainless steel bearing. The base is removable to easy access the bearing. Rotation time:100-180 seconds. Nice Gift: The kinetic desk toy makes a truly great and each unit is designed with attention to the smallest detail and built to last a lifetime. Function:Simply rotate it to reveal the mind-bending effect of a continuously flowing spherical helix.When revolving it creates an almost magical effect that looks like continuously flowing helix would merge into a surface of tabletop Package Include: You will receive 1 dynamic tabletop toy ball in the color of your choice.