The 1-3/8 inch x 36 inch Polished Smooth Carpet Trim easily covers a seam or gap between two flooring surfaces of unequal height. Carpet Trim prevents carpet edges from fraying, vinyl floor seams from curling and creates a smooth transition between different flooring surfaces. Aluminum trim is easily secured to wood and concrete floors with provided Screw Nails. For installation on concrete floors use Wooden Pegs (sold separately).