Key safe with combination lock: the Kinzo key safe is secured with a 4-digit combination lock. You set the code yourself and with 10,000 different combinations you can be sure that no one can guess your personal code. The combination lock is protected by a sliding flap. Robust metal casing: the housing of the Kinzo key safe is made of robust, durable and waterproof metal. The material is difficult to break, so that the key safe offers an additional layer of security next to the combination lock. Inside and outside – you can easily attach the Kinzo key safe to an inner or covered outer wall with the included mounting material. Thanks to its robust metal housing, the key cabinet is also waterproof. Private use: the Kinzo key safe is perfect for storing all types of keys, including the house key. In this way, you will never have the problem of a locked door and a key that is still inside. Office and AirBNB keys – In addition to house keys, the key safe can also be used for storing office or business keys. Also owners of rental properties, such as AirBnB, can use the key safe well as you no longer have to be physically present during check-in.