Silicone Baking Mat, non-stick with a 1 inch grid layout, fits half sheet pans, 16.5&rdquo; x 11&rdquo; - Red 1 INCH x 1 INCH GRID / graph paper design helps with spacing baked goods. The grid can also be used as a guide to make baked goods the same shape and size. FITS HALF-SHEET BAKING PANS, 16.46 inches x 11.29 inches x 0.03 inches. HEAT RESISTANT up to 430F and cold resistant down to -40F. HIGH QUALITY, FOOD GRADE SILICONE - Tested to FDA safety standards. ULTRA-THIN DESIGN does not affect baking time or temperature; just follow the cooking time and temperature listed in the recipe when using the mat.