Prime Line Brass Plated Steel Door Knob Rosettes 2-Pack E 2282These rosettes are constructed from steel and come plated in brass. The 2 1 4 in. diameter rosettes have 1 3 4 in. hole centers. For old style passage locks; fits standard knobs. Easily mounts to your door with included screws. Note: These rosettes will not work where large bores for modern knobs are present, without first filling the large holes with a hardening filler.