M-D MetalDecor 1-3/8 In. x 3 Ft. Carpet Trim, WideDurable aluminum trim with the look of hardwood in oak or cherry finish, for transitioning from carpeted to flat flooring. Protects carpet edge from fraying. For low medium pile carpets. 1 3 8" wide, in 3' and 6' lengths. Fasteners provided. Carpet metal installation on concrete surface suggestion: Drill a hole in the concrete, insert a 3 16" x 1 1 4" or 1 4" x 1 1 4" wood dowel. Use the screw nails provided with carpet metals, insert into dowel,