The safety lock is not operated by a conventional slide key, but by a solid ring that is firmly attached to the robust mechanism. It can be opened with a simple turn and, after releasing the pull, the solid slide bolt locks again.
Height: 8.5 cm
Width: 9 cm
Depth: 4.5 cm
Weight: 0.6 kg
Another option:
ZK-165-1-350 Box lock
Height: 8.5 cm
Width: 14 cm
Depth: 4.3 cm
Weight: 1 kg
Another option:
ZK-166-1-300 Additional box lock