●【Passage Function】The passage door knobs are beautiful and durable, appropriate for hallway, storeroom and closet doors. Typically fit for interior doors that dont need to lock, or doors with a separate deadbolt. ●【Adjustable Latch】Latch can be adjusted to 2-3/8 or 2-3/4 inch, fit all doors 1-3/8” to 1-3/4” inch thickness. ●【Easy to Install】Only need a door and a tool set, you can do it yourself. ●【Complete Accessories】The crystal door knob Contains all accessories and installation instructions. If any accessories are missing, please contact us. ●【Service】 If you have any question about the interior door knobs, please contact us (via Amazon). Well solve for you as soon as possible.