Kaba Simplex 303019 Drive Assembly for 3000 Series; 1-1/8" Backset with RH or RHR Handing Black FiniKaba Simplex 303019 Drive Assembly for 3000 Series; 1 1 8" Backset with RH or RHR Handing Black Finish Fully Mechanical Lock Eliminates the Material and Labor Expense of Battery Replacements Single Access CodeOne Easy to Manage Code for All Users Lock is Easily Programmed Via Keypad Without Removing Lock From the Door Vandal Resistant, Solid Metal Pushbuttons Non Handed; Required Drive Assembly is Factory HandedNot Field Reversible