FUNCTIONAL SIZES- Silicone Baking Mats standard which are two half size baking sheets (16.5"" x 11.6"") and two quarter size baking sheet(11.5"" x 8.5"" ). MULTI-PURPOSE- Perfect for baking, kneading, rolling, candy, macaron, pastry, cookie, bun, bread making as well as for freezing meat balls, dumplings, fruits and vegetables. NON-STICK and EASY-TO-CLEAN- No more scrubbing! Even burnt sugar and fat falls off on its own. Just rinse the mat in warm soapy water to clean it. You can also wash it in your dishwasher. Repeated multiple uses and washing cycles do not affect non-stick properties of the mat. FOOD SAFE or NON-TOXIC and HEALTHY- Made of premium quality food grade silicone and fiber glass. No oil or fat is required for baking which reduces intake of cholesterol, saturated fat and cancerogenic substances produced by cooking oils subjected to high temperatures. OVEN or MICROWAVE or DISHWASHER or FREEZER SAFE- They are flexible yet tear resistant, and designed to withstand thousands of uses under extreme conditions of bitter cold and intense heat (from -40F to up to 480F).