These Grand Designs Silicone Baking Mats are both stylish and practical. Made from silicone, they’re statement pieces for your kitchen. Made from fiberglass mesh and the highest quality silicone, they’re statement pieces for your kitchen. They’re suitable for all types of microwaves and ovens. They provide consistent heat distribution throughout cooking time, creating evening baked cookies, chips, and vegetables. Elevate your cooking with these baking mats from Grand Designs.