Digital deadlocking mortice latch. Codes can be easily changed. Optional hold open function. Tumbler alignment for easy code changing. Non handed - suitable for both left and right handed doors. Tubular latch mechanism with 60mm backset. Suitable for Light Duty Entry Control For Inner Doors. Suitable for door between 35mm and 60mm thick. 14 digit keypad offers over 8,000 codes of 4 to 7 digits. Finish: Silver Grey (SV) Note: This is our Machinery Keypad Security Entry Door Lock with Emergency Override Keys. It is Suitable for office use, home or apartment. Please read the instruction thoroughly before using the unit. Please retain this manual for future reference. Package Contents: 4 x Digital Push Button Door Lock Key Pad Code Combination Access Mechanical (No retail packaging) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.