Prime-Line Products T 8658 Window & Door Weatherstrip with 3/16 inch Wool Pile, 18 Feet, Gray Constructed of synthetic pile weatherstrip with plastic backing Gray in color,NOTE: Verify dimensions before ordering 3/16 in. x .156 in. x 18 lin. ft. Used on windows and doors to reduce drafts, dust and noise, and to seal out insects zig-zag backing allows for easy installation with a rolling tool Water resistant gray color pile 18 ft. length 3/16 in. width For use on both storm doors and windows