Whether you're replacing the lock set on your antique doors or just love the traditional look of a glass knob, this E 28335 Mortise Lock set is the perfect choice for fixing hardware on interior doors. Made with a satin nickel constructed trim and a glass knob, it has a beautiful traditional look with modern construction. It can be used for left or right hand installations, and has a lock bolt that is key activated from both the inside and outside. When you're restoring antique doors or replacing or updating hardware on older interior doors in your home, this E 28335 Mortise Keyed Lock Set with Glass Knob is the perfect choice. Fits doors with a 2-3/8 in. backset.