"The 12.5 in. x 17 in. Grip-n-Grip no-slip mat is made from a heat resistant rubber that will not move around when laid down on a table: the answer to all the prayers of textile artists who have been frustrated by fabric that wont stay put while embellishing. In addition, you can heat press or iron fabrics directly on the surface of the mat. Ideal to use stenciling or painting fabric, or when creating rubbings with Paintstiks: place this mat on your work surface, put the rubbing plate on top of it, and then lay your fabric over the two, and say goodbye to sliding rubbing plates!"