2 pack large thick heavy duty non stick teflon oven liners mat, 17"x 25" bpa and pfoa free, for bottom of electric oven gas oven microwave charcoal or gas grills threadnanny protect your oven from those nasty, hard to clean spills ! heavy duty 2-pack large non stick oven liners guaranteed 100% certified pfoa & bpa free - tested to be safe for your home and family teflon material - a perfect fit for standard 30” ovens. can be easily cut to size for smaller ovens. - can also be used in microwaves & toaster ovens - works as pan liner, baking mat, grill mat - safe up to 500 degrees farenheit - non-stick, reusable & dishwasher safe - can be cut to size - wipes clean! for all gas ovens & electric ovens with a hidden heating element, place on lowest rack (not oven bottom). for electric ovens with an exposed heating element, place at bottom of oven underneath the element. <b> if you do not love it for any reason simply contact us for a complete, no-hassle refund. </b>