Door Knobs: Quality-crafted door knobs and components made entirely of solid brass with steel working mechanism and our exclusive Renovator's Supply Finish which protects 20-40 times longer than the competition. This elegant chrome passage set includes two chrome knobs, brass and steel latch and circular chrome backplate with 1/4 inch square spindle. It also has 2 3/8 inch backset. The knobs are 1 3/4 inch diameter. Does not include privacy button.