Traditional Rosette Door Set with Black Octagon Crystal Door Knobs (Several Finishes Available)2 1 3 inch Diameter (point to point) Octagon Black Crystal Knobs 2 1 2 inch Diameter Round Solid Brass Rosettes 2 3 8 Inch Backset Included (2 3 4 inch available at request) Fits Standard 1 3 8 inch Door Thickness Passage & Privacy Sets Include All Functional Hardware Needed Single & Double Dummy Set is Non Functional Mounting Hardware Included Black glass door knobs, originating in the 19th century during the Victorian era, gained popularity for