Long Lasting & Durable Material:The privacy door handles are made of high quality STAINLESS STEEL.The door lever surface is rendered smoother and more resistant to corrosion after undergoing specialized processing.Even in coastal or humid conditions, they maintain a smooth and clean finish, resisting paint peeling. Passage Function & Wide Application:The paaage door lock with no key and no locking function.Ideal for used in hallways, closets, and other rooms where a key is not necessary. Easy Installation:This interior and exterior door levers can be easily installed according to the instructions of the product,installation in just a few minutes to save your time. Fitted Doors:Adjustable Latch with 2-3/8" to 2-3/4"(60 or 70mm) backset.Fit all doors 1-3/8" to 1-3/4" (35mm to 45mm)thick.This door handle lock set is reversible that means it can be used both on left and right sided. Modern Design & Black Finish:The Matte Black square French door handle perfectly matches any decoration style and place in the home, and after thousands of experiments and adjustments, the stainless steel surface is more durable Knobelite Passage Door Handle 1.The heavy duty door handle is made of high quality stainless steel and are tested for high temperature and humidity to make them more durable 2.Our matte black passage door levers can be used for left handed doors and right handed doors 3.Knobelite door lever can be used on hallway, closet doors and other interior doors requiring no locking functionality.Installation Accessories Screw（Long screws are attached to the handle）Strike BoxStrike PlateLatch Lever