Tube Reserve Lever, with Contemporary Round Rose Solid forged brass construction. Shown in Passage function. Other functions available. Shown with Contemporary Round Rose, can be customized with other Reserve roses. To personalize your look, this Contemporary inspired design is available in 3 finishes. Features easy-to-install spring assisted chassis for optimal operational strength. 2-1/8" cross bore and 1" edge bore for latch. Accommodates door thickness 1-3/8" to 2". Up to 2-1/2" thick door door with service part kit. Keyed entry featuring the traditional Baldwin pin and tumbler C-keyway offered for all Reserve lever styles. Adjustable backset latch fits 2-3/8" (60mm) or 2-3/4" (70mm) pre-bored doors.