Door Knobs Interior: The mortise lock set interior door can be selected as an antique modern door knob according to your decorative style. The door knob with lock is crafted from rectangular door plates reminiscent of mythical beasts symbolizing peace and prosperity and elegant glass door knob. Timeless antique brass door knobs are the ideal choice for larger vintage modern or new doors. Installation: The upgrade mortise lock is easy to install and quick to switch between left and right hands. No need to disassemble door lock hardware, simply remove the screws, flip the latch and install the screws. Comes with detailed and easy-to-understand installation instructions. Door lock set is suitable for door thickness ranging from 1-3/8" to 1-3/4" (35-45mm). Glass Door Knobs: Premium gorgeous crystal glass door knobs handle and beautiful classic antique brass finish, strong and durable, perfect replacement for old or broken locks, looks great and adds vintage and modern charm.