Vortecon is a precision machined desk toy that creates a mesmerizing optical illusion when spun. Simply rotate it to reveal the mind-bending effect of a continuously flowing helix. A piece of kinetic art that invites you to transform it from precisely engineered still shape into hypnotic optical illusion. Vortecon is made out of solid stainless steel, brass or copper. It has a helix-shaped groove milled alongside the edge that continues as a symmetrical spiral on the top plane.