... optional Detailed Information: Product Name: WATCHDOG D1816F Keypad Biometric Fingerprint Security Lock Color: Champagne Golden, Coffee, Vivid Silver, antique bronze, ... , Office Building etcApplicable Door Type: Wooden Door, Metal Door, Security DoorApplicable Door Thickness: 40-100mm(adjustable)Key Capacity: Card(or ... for your choice: rear lock body Keypad Biometric Fingerprint Security Lock D1816F