This silicone healthy chef baking mat is a simple way to bake without having greasy fatty foods. 351 raised contours allow air to freely circulate around and under food so food never touches the bottom of the pan. They allows create a way for grease and fat to drain to the bottom leaving you with light, crisp food. Start getting moist, evenly cooked food in the comfort of your own home. This mat can be used whole or trimmed to whatever size mat you need. Oven safe up to 428 degrees Fahrenheit, it is also microwave and dishwasher safe. A sure must have for every kitchen.