These Best-Rite display rails with a 3"H surface are available in 100% natural cork or vinyl, covered in various colors fabrics. Besides resisting soiling from sources like glue, crayon and dust, these display rails quickly and easily provide a sturdy tackable surface anywhere you need one. Add functionality to libraries, classrooms, hallways, offices and more. Beneath their covers these display rails consist of 1/2" thick insulation board, to which 100% natural cork or vinyl is laminated. These surfaces are truly unique, treated to resist mold, mildew and bacteria, and self-healing for increased longevity. The entire display rail is framed at the factory in 1/2" thick anodized aluminum.