Special version on request e.g.: Forend stainless steel; latch arrester. Function from the inside: The door has a lever handle on the inside. Pressing the lever handle retracts the latch and the pre-locked bolt. The door can be opened. Function from the outside: The door has a fixed knob on the outside. The latch and bolt can be operated with the key. By pulling the door to, opening from the outside is prevented by the latch. The door can only be opened with the key. To open the door, the latch is retracted by turning the key with the help of a key-operated latch. The door can also be locked and unlocked with the key.