Professional Commercial Grade Non-Stick Heat Resistant Silicone Baking Cookie Sheet Liner Mat (2 Quantity) Professional Non-Stick Heat-Resistant Silicone Oven Baking Liner Sheets for Baking Dimensions 8.5" X 12" X .75mm Constructed of FDA approved materials, BPA & BPP free Withstands temperatures from -40 degree to 480 degree F (-40 degree to 249 degree C) Can be used in the oven, microwave, toaster oven, freezer.