Baldwin Reserve DCDELXTRATSR049THK Double Cylinder Del Mar Handleset with Traditional Knob and Traditional Square Rose For Thick Door with 6AL Latch and Dual Strike Matte Brass and Black Finish. Specifications: Category:Residential Locksets - Sub Category:Handlesets - Finish:Matte Brass and Black - 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 ;