Zaguán is an individual small letter box made of steel. It has 2 functions: porridge box or letter insert. You can use it as a mailbox outdoors or you can place it inside a door or wall, combine it with an outside letter slot and use it as a letter slot thanks to the additional opening it has on the back. Zaguán is not only versatile, but also a compact and convenient to open mailbox that you can install individually or together with other mailboxes. Its rectangular shape allows you to place multiple glued letterboxes both horizontally and vertically, form groupings and make the most of any small space. Product details: size S (DIN A5): capacity for A5 sheets, folded A4 sheets, small envelopes C5 and DL etc. External dimensions (height x width x base): 32 x 22 x 8 cm, mouth dimensions: 18.2 x 3 cm, mouth dimensions from the back, letter throw: 19, 7 x 2 cm. Made of galvanised steel: high weather resistance and corrosion resistance and durable. Waterproof with card holder. How can you install it? (Various options) Scrunchy on wall. It has 4 holes on the back so you can attach it (screws included). If multiple groups are formed, each unit must be screwed separately to the wall (no side loosens). Attached to fences or gates with the Arregui C-015 mounting kit (product sold separately). Supports for floor installation Arregui STT02 (product sold separately). What is included? In the package you will receive the letterbox, the mounting screwdrivers (poles and threshold screw) and 2 keys. If you want to use as a letter insert, the Arregui letter insert will be sold separately