Passage knobset for interior doors, plain knob on both sides. Turning either knob will retract bolt at all times to open door; dual-option spring latch (drive-in and radius faceplates) standard. 1/4" radius full-lip strike. Adjustable backset (2-3/8" to 2-3/4"). Fits standard door preps. Bright brass (605). 25 year mechanical warranty. 5 year finish warranty. ANSI Grade 3 security and performance.