The From the Anvil Beehive Mortice/Rim Door Knob Set Ebony/Brass has detachable roses enabling it to be used with a rim lock or mortice lock/latch. The knobs measure at 58mm with 58mm roses and project 83mm from the door. The set comes complete with two knobs, threaded spindle and fixings. Ebony Door Knobs The door knobs have an ebony knob and antique brass rose - the ebony has a rich dark look and a very smooth finish. It can be polished or waxed to maintain the vibrancy and give overall protection. It is designed to be used internally but can also be used externally when maintained periodi...