Dorex F1H70 C26D Heavy-Duty Classroom Lever – Satin ChromeF1H70 C26D Classroom function suitable for doors that need to remain locked or unlocked for lengthy or specific periods Vandal resistant clutch lever Architectural quality for heavy duty commercial applications High quality satin chrome finish For 1 3 8 to 2 1 4 door thickness 2 3 4 backset Optional backsets by special order: 2 3 8, 3 3 4, 5 Non handed field reversible Non removable steel thru bolt mounting posts Lever length is approximately 5 1 8 3