CISA Iron Door Latch Lock.

Original Italian CISA concealed lock with an Italian-made cylinder. It comes with a warranty from the authorized dealer, and includes a 66mm-sized cylinder.  

Bathroom Cylinder Core: Size 70mm, can be installed on any internal recessed door lock without a key, for the safety of children.

Concealed security lock for external doors: Excellent quality, four-digit combination, 45mm size, double-sided key cylinder with a brass core, and comes with three brass keys