The Lineco® archival mounting corners, with pressure-sensitive polyester material, offer firm mounting without blocking the photos. These Lineco photo corners easily press into place with an acrylic self-sticking adhesive backing. It can be used for mounting photos, post cards, clippings, letters, ephemera, trading cards, prints, and a wide range of other paper items. In addition, these mounting corners are pre-scored, thus allowing quick and easy application. This box contains 240 corners of 0.5- inch each.