Sminiker Non-Stick Silicone Baking Mat,Sheet Size, 11-5/8" x 16-1/2"- 2 Pack Mat measures 11-5/8-inch x 16-1/2-inch; Made for a 13-inch x 18-inch pan Healthier option - No need for cooking sprays or oils Versatile - Can be used in the oven, microwave, toaster oven and freezer. Turns any baking sheet into a non-stick surface Made of fiberglass and silicone and can be used thousands of times; Professional quality Freezer, microwave and oven-safe; Can be used at temperatures varying from -40 degrees C to 250 degrees C (-40 degrees F to 482 degrees F)