Extruded 45mm aluminium frame featuring tough 2mm plastic front.Waterproof seal protects posters from damage.Can be fixed landscape or portrait in either outdoor or indoor locations.Easy to install on a wall, or other flat surface, with fixing kit supplied.Lockable with keys supplied.Full length aluminium hinge.External depth: 34mm.Posters are held in place using the integral clips.Door Stays to make poster change easier.