Just wet it with water and rub it off to remove any rust and barning. The aluminum polish on the surface of the sheet can be used to remove rust from frying pans, pots, trivets, stoves, etc., and the grill net is burned off from rust and burns. Approx. Width 3.9 x Length 27.6 inches (10 x 70 cm); Can be cut and used as much as you need. Material: Nylon, Alumina Size: Approx. Width 3.9 x Thickness 0 inches (1.1.1.1.1.1.1.1 cm); Weight: Approx. 2 oz (65 g).