Multi Mat is made up of a 1/16" thick rigid core of plastic similar to flexible engraving stock, which has a thin special rubber coating on both sides. The bottom of the Multi Mat sticks to the engraving machine bed. Multi Mat's other side holds any type of plastic engraving material or metal engraving material. Multi Mat will last a very long time. Both sides of Multi Mat are usable. Multi Mat is sold in several sizes to fit your engraving system bed. Multi Mat is easy to cut to any size.