This non-stick silicone baking liner can be used in place of parchment paper. Just place the liner in a baking pan. It is re-usable for thousands of times. Baked goods or candies will not stick to the silicone surface which can be used in the oven, freezer, and microwave. Using this liner with bake goods reduces the chance of burning the bottom of the food. Also great for use in rolling dough. Clean up is a breeze. Just use soap and warm water. This full size sheet measures: 16.5" x 24.5". Three other sizes are availible as well as a dual pack. Half Size Sheet, Jelly Roll, Petite Jelly and dual pack (one Jelly, one Petiite) Tested and Certified by NSF.