Recessed privacy turn and emergency release, designed for use on sliding doors in bathrooms or WCs.  They are supplied with a spindle for a privacy sliding door lock which is operated by the thumb turn on the inside of the door.  For emergencies, the door can be unlocked from the outer side using a coin or screwdriver.This product is not supplied with a lock, and cannot be used on doors which are less than 44mm thick. These products will require bonding into the door.