Metro 4 inch Tall Chrome Plated Shelf Ledges for Solid Shelving to prevent items from falling off shelves.  Metro shelf ledges are independent of each other so you can enclose the sides, back and front or any other combination.  Spring clips are used to attach ledges to solid shelves.  Finish: Chrome Plating, this heavy duty nickel chrome finish for dry, low humidity environments. Metro durable chrome finish includes a protective lacquer coat.