Aluminium letterbox with two compartments, in compliance with PTT standards. Letter compartment with a security lock, supplied with two keys and a special dust coating. Storage compartment with folding door and twist latch. Highly resistant to atmospheric agents and to rust, maintenance-free. Available in basic silver colour as well as in the RAL range of colours. Individual letterboxes can be hung on a wall, installed on one or two poles or built into a wall space.