These YoYo Moon Silicone Baking Mat Cookie Baking Sheet Set (2) – Non Stick Cookie Sheets Professional Grade are ideal for the half-sized aluminum sheet pan. The baking sheet set is produced from food grade silicone, and is made from FDA and LFGB approved materials. Line your cookie or baking sheet with this ingenious silicone baking mat so food won¡¯t 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. Cookie baking sheet 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! Approx Size: 16 1/2″ x 11″