Basics door knobs are made from Brass and hand finished to ensure a uniform look amongst all styles and hardware sets.Brass body; steel internal structure Adjustable latch from 2-3/8 – 2-3/4 inches (60-70mm) Includes two (2) brass keys, KW1 keyway, rounded steel faceplate and strike, and zinc alloy latch bolt Detailed installation instructions included Backed by an shopx7 heforxBasics 1-year limited warranty