The Jelly Roll Baking Mat by Tovolo allows "quick release with no grease." Heavy-dugy liner lasts and protects your pans for years of use. Multi-purpose. Non-stick. Reusable. Bake right on the liner. Easy to clean - dishwasher safe. Heat resistant to 600 degrees F. 11.5" x 16.5". Doesn't fit? Cut the mat to size.