The From the Anvil Elmore Concealed Mortice Door Knob Set Polished Nickel has a classic regency style and is unsprung for use with mortice latches. It also features a concealed rose which hides the fixing screws. The knobs measure at 56mm with 58mm roses and projects 70mm from the door. The set comes complete with two knobs, spindle and fixings. Polished Nickel Door Knobs The door knobs have a polished nickel finish and can be used internally or externally. The highly polished nickel plating is applied to the solid brass and is unlacquered as it will not tarnish.