Manufactured by Emtek Leverset Modern Classic - Passage Set - Helios Lever - Square Rosette - Left-Handed - Satin Nickel - 5110.HLO.LH.US15 Standard 2-1/8” door prep. STANDARD latch is for 2-3/8” backset. SPECIFY 2-3/4” backset if required WHEN ORDERING. Complete set includes standard rotation latch and strike plate. Quality that you can see and feel is built into each and every Emtek product. It is about form and function working in beautiful harmony. Our promise is to deliver the best performing hardware, always using quality materials. Because when you touch an Emtek product, we want you to feel safe, confident and impressed.