Defender Security E 2279 Mortise Style Fluted Glass Door Knobs - Perfect for Replacing Broken Antique Lock Sets on Interior Doors, Features 2&rdquo; Outside Diameter Knobs (Brass Plated) FLUTED GLASS KNOB SET - The E 2279 fluted glass door knob set is ideal for replacing or updating interior door hardware. With beautiful classic fluted glass andbrass plasted finish, its the perfect choice for your next project. REPLACE ANTIQUE KNOB SETS  This E 2279 Mortise lock set is the perfect choice for replacing broken knobs on old or antique/vintage interior doors. BEAUTIFUL, CLASSIC DESIGN  The design of these clear glass fluted knobs with a brass plated finished knob base will fit perfectly into a vintage or antique style door. EASY INSTALLATION  Installation is quick and easy. Some components may need to be purchased separately. PRODUCT INFO  These fluted glass door knobs are 2 in. outside diameter knobs with 1-15/16 in. projection and 17/64 in. x 3-1/2 in. square spindles. Has glass, diecast and steel components.