Clear Dura-Lar from Grafix is a polyester film that combines the best features of Mylar and Acetate for a very versatile film. It will not tear, absorb moisture, yellow or discolor and is heat resistant. Dimensionally stable, Dura-Lar lays flat and is acid-free and archival. This Clear Dura-Lar is ultra-clear with a glossy surface for use as a protective covering, for layouts, window applications and transparencies. Also use as an artwork surface for permanent inks and markers. This is a single sheet of .010 Clear Dura-Lar measuring 25x40 inches.