100% Platinum Food-Grade Silicone:We are professional to offer the food grade silicone many years ! GUANCI 4-piece cookie baking mat is made of reinforced fiberglass and platinum food grade silicone.The white fiberglass will turn yellow after 4 hours at High Temperature 540°C Vulcanization Process and the finished baking mat will not cause smell or smoking under 482°C. | Anti-Slip&Easy Clean-This silicone baking mat is made of food grade platinum silicone, so you will enjoy the best NON-STICK baking mat. A little soap and water are all you need to clean up, No scrubbing or soaking, even burnt sugar and fat falls off on its. Dry it before storage please. | Double Thickness&Durable-GUANCI Silicone baking sheet is 0.7MM thickness and almost double thicker than most 0.4MM thickness PASTRY mats which is too thin and soft .Superior kitchen bread mat is much thicker and durable ,so it is very hard to crinkle and move as you roll out the dough.And our pastry mat is double-side using,it is more lasting. | GUANCI Kitchen Mat- 1/2Pcs Rolling Macaron Baking Mat with size of 16-1/2" x 11-5/8"and 0.7MM thickness. 2/ 1Pcs Baking mat with size of 11-3/4 x 8-1/4"and 0.7MM thickness. 3/ 1Pcs 9"Round Pizza mat 0.7MM thickness. 4/2Pcs Silicone storage band as bonus | Heat-Resistant: Silicone pastry mats withstand temperatures from -40°F to 572°F , suitable for dishwasher/oven/microwave oven/freezer,all safe-using.