The Entrance Door Knob Set has been designed for applications on interior doors and can be locked from either inside or outside. Key locking for the outside and a turn knob for the inside allow you to lock either side of the door.Easy to install, each set is supplied with fitting instructions and templates. Tubular latches are adjustable to either 60mm or 70mm depending on your application. They can also be used in different environments, which means they are suitable for both commercial and domestic applications. Available in Brass Effect, Chrome and Satin. 1 year mechanical guarantee.