Mechanical, Knob, Cylindrical, Lockset Function Classroom/Privacy, Lockset Grade 2, Ball Style, Satin Stainless Steel Lockset Finish, Keyway Type AR1, Key Type Different, Standards ANSI A156.2, No, Lockset Fire Rating 3 hr, Backset 2-3/4 in, Ligature No, For Use With Wood or Metal Doors, Includes Mounting Hardware, Item Knob Lockset, Key Material Brass, Knob Material Wrought Brass, Location Type Commercial, Lockset Performance Strength Medium Duty, Number of Keys 2