The ERA Passage Door Knob Set is suitable for internal doors and is non locking, giving free access at all times. 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.