This entry-door combo pack includes Kwikset"s Tylo Maximum Security ball knob with a single-cylinder deadbolt. The classic design of the Tylo is at home in any décor , its style lending a graceful finish to any entryway. The deadbolt features an ANSI/BHMA Grade-3, 5-pin cylinder and a 1-inch throw with a hardened steel insert to prevent saw break-ins. This single cylinder unit is operated by a key on the outside and turn-piece on the inside for easy locking. The purchase includes four keys. The knob is also adjustable for both 2-3/8- and 2-3/4-inch backsets. This product carries a 10-year mechanical and 5-year finish warranty from the manufacturer. --Brian D. Olson