SINGLE-LOCKING DOOR HANDLE LATCH - BLACK - SET OF 4. THIS IS OUR SINGLE LOCKING DOOR HANDLE, MEANING IT CAN LOCK ONLY ONE WAY - FROM THE OUTSIDE OF THE VEHICLE USING A KEY. IF YOU WANT TO HAVE THE ABILITY TO LOCK FROM THE INSIDE AS WELL AS THE OUTSIDE, SEARCH FOR OUR DUAL LOCKING DOOR HANDLE, ALSO SOLD ON AMAZON. Additional Details ------------------------------ Product description: SINGLE-LOCKING DOOR HANDLE LATCH - BLACK - SET OF 4. THIS IS OUR SINGLE LOCKING DOOR HANDLE, MEANING IT CAN LOCK ONLY ONE WAY - FROM THE OUTSIDE OF THE VEHICLE USING A KEY. IF YOU WANT TO HAVE THE ABILITY TO LOCK FROM THE INSIDE AS WELL AS THE OUTSIDE, SEARCH FOR OUR DUAL LOCKING DOOR HANDLE, ALSO SOLD ON AMAZON.