Ultra Mount Peel N Stick is a premium pressure-sensitive mounting substrate designed for framed art and photographic mounting applications. It is constructed of a heavy, dense polystyrene foam core, with 18 pt. polyethylene coated paper liners to prevent warping. It comes pre-coated with a high-tack acrylic adhesive on one side. It is offered in white or black, 3/16 or 1/2 inches thick, in ten pre-cut sizes.