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. Satin nickel (619). 25 year mechanical warranty. 5 year finish warranty. ANSI Grade 3 security and performance. In accordance with California Prop 65 WARNING: Cancer and Reproductive Harm-www.P65warnings.ca.gov ADVERTENCIA: Cancer y Dano Reproductivo-www.P65warnings.ca.gov AVERTISSEMENT: Cancer et Troubles d l'appareil reproducteur-www.P65warnings.ca.gov - Lead