Lane Sliding Cavity Door Locks are made to fit most swing door locks, allowing for quick and easy installation. The push button latch finger-pull presents an unobtrusive way to access the door when it’s sitting flush with the door jamb. Simply depress the end of the latch to extend the thumb-pull, depress again to retract it. Designed to fit your standard door lock hole positioning, this Lane Security cavity slider passage set can easily be retro-fitted to existing swing doors that are being re-purposed as sliding cavity doors.