The 16 3/8" x 24 3/8" Quilon Treated Pan Liner is the best way to make any pan you bake with non-stick to increase efficiency at your bakery and decrease waste and time spent cleaning. Each sheet in the supply of 1000 sheets per case is Quilon treated to act as a release agent. This will prevent breads, cakes, cookies, and pastries from sticking directly to the pan. This disposable pan liner will help your busy bakery operate more effectively in labor and cost with its outstanding convenience. The large amount it's packed in will also be a long-lasting supply.