Assembled Product Length: 23" Assembled Product Width: 15.27" . Looks like a sheet of plastic except that it's heat resistant and won't burn Made to resist temperatures up to 500°F 100% non stick material that is easy to clean Wipe clean or wash in warm soapy water and then its ready to be used again Alternative to aluminum foil, holds no odour Fits any size oven; can be cut to desired size Suitable for gas ovens, electric ovens, and microwaves