Baking Mat Non-Stick Silicone 11.75 X 8.25 Inches Edges are cut at a to make it easier for lifting out of the pan Dimensions: Premium Non-Stick Silicone Baking Mat, 8-1/4" x 11-3/4" Made from food grade silicone reinforced with fiberglass mesh and can be used thousands of times; Rolls up for easy storageand fits 9 x 13 Inch sheet pan 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)