VERSATILE INTERIOR DOOR LOCK MOUNT: Surface-mount design installs cleanly on the jamb to convert standard passage sliding bar doors into secure interior door locks, ideal for rentals, offices, and shared spaces where you need added privacy without construction work INTUITIVE ONE-TOUCH LEVER CONTROL: Streamlined thumb lever design lets you lock or unlock the door hardware & locks in a single smooth motion, delivering quick comfort for busy households and shared rooms where simple operation matters most BUILT-IN EMERGENCY ACCESS OPTION: Integrated emergency release key lets you override the interior door lock from the hall side when needed, adding peace of mind for parents, caregivers, and property managers who want secure privacy without sacrificing quick safety access FITS A WIDE RANGE: Adjustable strike plate design works with interior door locks on doors from 1-3/8" to 2-1/4" thick, giving you reliable alignment, smoother latching, and flexibility when you’re upgrading mixed-door properties or older homes NO-DRILL, NO-DAMAGE INSTALLATION: Skip drywall anchors, studs, and patchwork with a simple surface-mount setup that preserves trim, paint, and hardware, a smart home improvement choice for renters and anyone who wants a clean, reversible upgrade to their interior door lock