Baldwin EN.SQU.CSR Square Single Cylinder Keyed Entry Door Lever Set with Contemporary Square Rose Keyed Entry (Single Cylinder) Function: Single cylinder keyed entry door hardware is locked and unlocked from the exterior using a key and can be locked and unlocked from the interior using the locking mechanism. Perfect for securing entrances, side doors, and anywhere else that needs a bit more security. Features: Tested to exceed ANSI/BHMA Grade 2 security requirements Constructed of solid brass for durability and premium feel This lever set is reversible for installation on right or left handed applications Includes round, square and drive-in latch faceplates Easily installs on standard prep door from 1-3/4inch to 2inch thick Features easy-to-install spring assisted chassis for optimal operational strength . Specifications: Backset: Adjustable 2-3/8inch or 2-3/4inch Cross Bore: 2-1/8inch Edge Bore: 1inch Door Thickness: 1-3/4inch to 2inch Handing: reversible, left or right Lever Length: 4-1/4inch Projection: 2-5/16inch Product Weight: 3 lbs Latch Faceplate: round corner, square corner or drive-in Additional Functions: HD.SQU.L.CSR: Left Handed Single Dummy Door Lever HD.SQU.R.CSR: Right Handed Single Dummy Door Lever FD.SQU.CSR: Dummy Door Lever Set PS.SQU.CSR: Passage Door Lever Set PS.SQU.CSR (This Product): Privacy Door Lever Set EN.SQU.CSR: Keyed Entry Door Lever Set Single Cylinder Satin Black