Gourmery Premium Silicone Baking Mat Set (2pcs) - Fits US Half Sheets, Dishwasher Safe, Reusable Perfect for Baking - bake delicious cookies, macarons, muffins, brownies, and other pastries. Just the right size for US Half Sheets (16.5" x 11.5"). Recommended gift for your loved ones. Built for Rugged Use - reusable up to 4,000 times. Heat and cold resistant (use between -40F to 536F). Safe to use on microwaves, freezers, and dishwashers. A more economical alternative to parchment paper or sprays. These are the last baking mats you'll ever need. BPA Free, FDA and LFGB Certified - use this product without worry as it is made with your safety in mind. This is a premium quality product made from non-toxic food grade material. Cleaning is a Breeze - our baking mats have excellent non-stick properties that it's so effortless to clean up after every use. Kiss your hassles goodbye. Just hand wash with soap and water, and you're all done! "I just baked a test batch of shortbread cookies with them for the first time, and they worked perfectly. The bottom didn't get overbaked or burnt. I love it!" - Review from Wellfalcon