Artifex Ruler
A ruler that uses a special coating to extend lifetime and help save the environment by reducing plastic going to landfills.
By adding a transparent coating on the back of the ruler, there is a new layer between the markings and the surface, so the markings never come into contact with the surface. The ink markings will now never rub off, so you won't have to throw it away every few months! If this was put in widespread use in the United States, 1,300 tons of plastic can be saved from going into landfills every year!