Set of 3 silver door knobs for renovation, with instruction manual. Only one has been opened. The others are new and unused. ■For interior doors only, with locks x 3 Backset: 50 or 60mm Suitable door thickness: 30-42mm Front size: 22.5 x 57mm Front screw pitch: 42mm ＜Material＞ Handle: Aluminum die-cast - Type: For renovation - Color: Silver - Included: Instruction manual, screws - Quantity: Set of 3 Thank you for viewing.