Desk toy with full body optical illusion,a precision machined globe that creates a full body optical illusion when spun.Simply rotate it to reveal the mind-bending effect of a continuously flowing spherical helix.Made out of aerospace grade aluminum it has a helix-shaped groove milled alongside the whole surface.Designed to spin on any desk or flat surface. The solid spherical body and smooth finish make it very pleasant to interact with. It spins silently so you won't be bothering anyone around.Every globe has a rotating base equipped with high-quality stainless steel bearing. It guarantees a smooth and silent spin as well as long-lasting. The base is removable to easy access the bearing.Custom logo is available,Pls call us for more info!