Classic letterbox with letter slot in the roof The Allux 400 letterbox is a classic, square letterbox with a side-hinged door. Letters are inserted through the roof, which can be lifted as a whole. The slant of the roof flap makes it easier for rainwater to run off or prevents unwanted objects from lying on the letterbox. The door for removing the mail is equipped with a lateral stop and secured with a cylinder lock. If required, the cylinder lock can also be replaced by a Ruko security lock. The mailbox is suitable for mounting on the wall or on a stand. The matching stand can be ordered via the accessories.