Double Door Weatherstrip, Insert Type Hollow Bulb, Insert Material Silicon, Insert Color Black, Insert Size 1/4 in, Flange Material Aluminum, Flange Color Silver, Flange Finish Mill, Flange Height 1/4 in, Flange Width 7/8 in, Flange Thickness 1/4 in, Overall Length 3 ft, Overall Width 1 1/8 in, Stays Flexible to -40 Degrees F, Projection 1/4 in, Mounting Type Surface, Max. Door Gap 3/8 in, Fire Rated 3 hr, For Use With 36 in W Doors, Hardware Included