Dark Bronze Indicator Deadbolt IND90-G2 10B. Indicator displays: Red (IN USE) and Green (VACANT). Lock Specifications: Adjustable 1-3/8" (35mm) to 1-3/4" (45mm) door thickness., Backset: Adjustable UL Listed 3 Hour Fire Rated 2-3/8" or 2-3/4"., Deadbolt Faceplate: Standard 2 1/4" x 1" packed with ⅛” plastic filler to convert 1" face plate to 1 1/8" wide door preparations. Strike Plate: 1-1/8" x 2-3/4" square corner. Includes 1 emergency key.