Baldwin Reserve DCDELXTRATSR152STHK Double Cylinder Del Mar Handleset with Traditional Knob and Traditional Square Rose with Smartkey For Thick Door with 6AL Latch and Dual Strike Matte Antique Nickel Finish. Specifications: Category:Residential Locksets - Sub Category:Handlesets - Finish:Matte Antique Nickel - Function:Double Cylinder - Series:Reserve - Design:Del Mar Handleset with Traditional Knob and Traditional Square Rose - Strike:Dual Strike - Backset:6 Way Adjustable Latch, 2-3/8" or 2-3/4" Backset - Additional Information: Del Mar Handleset With Traditional Knob ; Adjustable 2-3/8" Or 2-3/4" Backset ; 5-1/2" Ctc ; Solid Forged Brass Construction ; Limited Lifetime Mechanical Warranty and Limited 25 Year Finish Warranty ;