4 Piece Non-Stick Mats - Made of food-grade and BPA-free silicone that can withstand temperatures from -40 to 480 Fahrenheit. Comes in a set of 4 mats, 2 of each size. Dimensions - Half size - 11x16.5 inches, Quarter size - 8.5 x 11.5 inches. Versatile Design - These flexible mats are designed with pre-printed templates, which are effective for baking goods that require consistent size. Perfect for baking macaron, meringue, cookies, or other baked specialties like pizza, bread, baked potatoes, brownies, and more.