Reliable and noticeable, the AdirOfficeWall Mount Side-Loading Acrylic Sign Holder is an excellent choice for mounting your signs against the wall. It is perfect for holding 8.5 x 11-inch signs, posters and announcements. Also, this Adir sign holder is made of premium transparent acrylic that makes sure the signs are clearly seen. Plus, a ready-to-use mounting adhesive can mount to concrete, wood, glass, metal, plastic or any surface. The user can also choose either a horizontal or a vertical display.