Nostalgic Warehouse BN40-CLAEAD-OB Classic Rosette with Egg and Dart Knob Privacy, Oil Rubbed Bronze Forged Brass Classic Egg and Dart Style Knob Full 3-Year Warranty Oil-Rubbed Bronze Finish is "living" and will wear with use over time Standard door thickness range is 1-3/8-Inch to 1-3/4-Inch