These silicone baking mats are ideal for the half-sized aluminum sheet pan. The baking mat is produced from food grade silicone, and is made from FDA and LFGB approved materials. Line your cookie or baking sheet with this ingenious mat so food wonâ€TMt stick. Turns any area into a non-stick surface. Use with nylon utensils only. This versatile silicone mat set can be used in the oven, microwave, toaster oven and freezer. It can also be used on the countertop for all types of dough. It cleans up quickly and easily with just soap and water. Never use sprays or oils again!