1.PREMIUM MATERIAL: This modern style privacy door lever is stable which is made of heavy duty zinc alloy and metal, matte black finish 2.SPECIFICATION: Fits standard door thickness: 1-3/8'to 1-3/4'(35mm-45mm) and adjustable latch 2-3/8'or 2-3/4'(60mm or 70mm), the latch plate is non-detachable. Black Door handle is come with a square strike plate, allows you to replace your existing one 3.PRIVACY FUNCTION: Keyless door knobs interior with turn button(lock and unlock) and exterior with emergency release button. When you are locked inside, the outside can unlock the door with a coin or slotted screwdriver, no key is needed 4.WIDE APPLICATION: This interior door handles is reversible that means it can be used both on left and right sided. Designed to completed both conventional and modern style interior doors for bathrooms, bedrooms, offices, rooms or other places privacy required