Small individual exterior letterbox with front mail entry and rear mail entry. It can be used as a simple mailbox or can be placed inside the wall, combined with an exterior mail entry and collect the mail inside. Compact design with lock and mail slot on the front, easily accessible. Thanks to its rectangular shape, several units can be placed next to each other, both horizontally and vertically, forming groups and taking advantage of the space. Main features: Size S (DIN A5): capacity for A5 sheets, folded A4 sheets, small C5 and DL envelopes, etc. External dimensions (height x width x depth): 32 x 22 x 8 cm Dimensions of the front mail entry window: 18.2 x 3 cm Dimensions of the rear mail entry window: 19.7 x 2 cm In galvanized steel: weatherproof, durable and with high corrosion resistance Waterproof With name plate on the door How to install it (various options) Screwed to the wall. It has 4 mounting holes on the back (mounting screws provided). To place several units in a group,