Stebler KABA/KESO/SEA Excerpt

The mailboxes come standard with a lock cylinder type and two keys. There are various types of lock cylinders, such as KABA, SEA, and KESO. This means that the mailbox can be adapted to the existing locking system of the house or apartment building, allowing you to use the same key for both the mailbox and the front door. The mailbox is delivered with a punch-out, which is a suitable hole for the desired variant, and then the appropriate cylinder needs to be installed. The matching cylinder can usually be obtained from the same place where you purchased the cylinder for the front door.