2 1/3 inch Diameter Brass 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 In the 18th and 19th centuries, the rope motif remained popular in architectural and interior design, reflecting the era's interest in neoclassical aesthetics. Brass, bronze, and iron hardware adorned with rope patterns became commonplace in homes, palaces, and public buildings, adding a touch of sophistication and elegance to door handles, drawer pulls, and hinges. The Passage and Privacy sets each come complete with interconnected rosettes and all necessary hardware for convenient installation of doorknob sets. For decorative purposes, our Single and Double Dummy sets feature surface-mounted rosettes. The standard backset provided is 2 3/8 inches, with the option to substitute it with a 2 3/4 inch backset at no additional if requested at time of purchase. All measurements are approximate. This product has a processing time of about 1 to 2 business days before it is shipped.