Lever, Lever, Medium Duty, Door Handing Field Reversible, S1100/S1200 Series, Fire Rated Yes, Color Silver, Satin Chrome Finish, Fits Stile Width 3 1/2 in, For Door Thickness 1 3/4 in, Application Classroom, Overall Length 4 3/4 in, Overall Width 3 1/4 in, Grade 1, Standards ANSI A156.3, Yes, Style Lever, Features Key Locks and Unlocks, Cylinder Single, Type Lever, Fire Rating - Door Hardware 3 hr