Satin chrome traditional reeded rim knobs to be used on doors that have an existing rim lock fitted to the face of the door the knob diameter is 55mm and the rose diameter measure 60mm there is only one rose supplied with this set as one knob fits tight against the surface of the rim lock and so does not require a rose these satin chrome on brass rim door knobs are part of the heritage brass collection and are supplied complete with spindle and fixing screws