BARSKA Biometric Door Lock Reversible Handle, Black DIY-easy installation, no other hardware needed Three master-print enrolls or eliminates other users fingerprints Three access methods: fingerprint, pin code and emergency back up keys Reversible handle fits either left or right opening doors Included Accessories: Front Plate (including rubber gasket), Back Plate (including rubber gasket), Tubular Latch Mortise, Strike Plate, Strike Box, Two Mechanical Keys, Installation Template, Accessories Pack and Four AA Batteries