Baldwin Reserve DCNEWXROUTSR049STHK Double Cylinder New Hampshire Handleset with Round Knob and Traditional Square Rose with Smartkey 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:New Hampshire Handleset with Round Knob and Traditional Square Rose - Strike:Dual Strike - Backset:6 Way Adjustable Latch, 2-3/8" or 2-3/4" Backset - Additional Information: New Hampshire Handleset With Round 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 ;