Tylo, Polished Brass, Knob With Single Cylinder Deadbolt Combo Pack, Provides Two Locking Points, Keyed Entry & Deadbolt, For Exterior Doors, Combo Packs Provide Additional Value Plus The Convenience Of One Key Operating Both Locks, Easy To Install, Adjustable Latch & Deadbolt Fit All Standard Door Preparations, Lifetime Mechanical & Finish Warranty.