Lockable Weatherproof Frame 24'' X 36" Inches Poster Size ,1.38" Aluminium Profile, Black and Silver Color, Mitred Corner (Black) The four sides of the lockable frame open sequentially. The last profile is held in place with a screw on top that can be opened with its key. This system ensures your poster is never accessed by unauthorized third parties. Please use the pull sticker to take off the cover. Place the poster inside the water wick around the inner frame. Suitable for outdoor use. Each frame includes an allen key to open the locked profile. Each frame includes wall mounting; 4 screws & 4 pegs. "Optional hangers" help easy mounting. Suitable for silk screen printing, max. letter height is 11/16 inch (16 mm).