Function Introduction: Keyed Entry Function:Keyed entry (single cylinder) door knob/lever sets are keyed on the exterior with an associated thumb turn on the inside that can quickly and easily lock or unlock the latch mechanism. Single Cylinder Deadbolt Function:Single cylinder deadbolts are keyed on the exterior with an associated thumb turn on the inside that can quickly and easily lock or unlock the latch mechanism. Product information: --Product Type: Entry Door Levers with Single Cylinder Deadbolt Set --Color & Finish: Matte Black --Material: Solid Steel(Latch), Stainless Steel(Handle) --Handing: Left, Right, Universal --Certification: ANSI Grade 3, Exceeds 200,000 cycles --Warranty: Lifetime finish and mechanical guarantee --Dimension: Adjustable Latch with backset: 60mm (2-3/8") or 70mm (2-3/4 ''); fit all doors 35 to 45 mm ( 1-3/8 '' to 1-3/4 '')thickness --Usage: Door konb with deadbolt for use on exterior doors where keyed entry and security is needed --Easy Installation: All you need is a door and a tool set! No need for professional door fitters, you can do it yourself! Package Includes: --Door Lever Exterior --Door Lever Interior --Deadbolt Exterior --Deadbolt Interior --Adjustable Latch --Strikers( not removable) --Mounting Hardware Home Improvement Direct provides Entrance(Same Key)/Entrance(Not Same Key)/Privacy/Passage/Dummy Door hardware. Please contact us if you need these products.