[Premium Quality] Silicone baking mat is made of food-grade silicone and BPA free. This baking mat set includes 2 half sheet baking mats (16.53 x 11.61in) and 1 quarter baking mat (11.81 x 8.26in). [Heat Resistance] Silicone mats for baking can withstand temperatures ranging from -40°F to 500°F, with uniform heat distribution ensuring even baking without burnt edges or undercooked centers.