Designed to join 2 floor coverings of the same height

Made from extruded aluminum

Screw nails included

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, expanding the dowel to lock in place