Kwikset 510CExCN L03 CP Maximum Security Chelsea Lever Combo Kit, Polished Brass Keyed entry handleset with ball knob interior and deadbolt lock 6-way adjustable latch fits square-corner, round-corner or drive-in applications Adjustable to 2-3/8- or 2-3/4-inch backsets; 1/2-inch knob throw; 1-inch deadbolt Easy to install with Philips screwdriver; meets ANSI/BHMA Grade-2 Security standards Lifetime mechanical and lifetime finish warranties