Profirst Quattro Mailbox system - comprising 4 post boxes in one unit. Ideal for, e.g., apartments/flats, house-sharing or small businesses. Each post box has a cylinder lock supplied with 2 keys for extra security and preventing unauthorised use. Plastic nameplates are provided for personalisation and easy identification and are waterproof. The slim design is space-saving and allows for fitting into narrower locations. Each mailbox door lifts upwards, and fits mail up to size C4 (if fitted diagonally).