MULTI-PURPOSE SET3 packs Silicone Baking Mats, 2 pack of half-sheet size mats (11 5/8 x 16 1/2) 1 pack of quarter-sheet size cooking mats (11 1/2 x 8 1/2). Let the food heat evenly, without uneven browning, no residual odor. WACKER FOOD GRADE SILICONE: baking mats are made of WACKER silicone and premium fiberglass,which is BPA free, non-toxic, odorless. The silicone baking mats never tarnish or fade and will serve you meticulously for years, a must-have kitchen accessory. DOUBLE THICKNESS: Thickness of silicone baking mats is 0.7 mm(approx. 1/32), which is almost twice that of others mats (0.3 mm). Thicker mats will not slip or wrinkle when used, extra thick and durable. NON-STICK EASY TO CLEAN: This silicone cookie mat is non-stick and can be easily washed with warm soapy water or in a dishwasher, even if grease or dough sticks to the surface, resistant to stain and stick. PREMIUM QUALITY RELIABLE: Silicone baking sheet mats withstands temperatures from -40F to 500F-40 to 260). Bakeware mat is safe for use in the oven, microwave and dishwasher with practicality and durability.