Atlas Satin Nickel non-locking passage lever for left- or right-handed closet and hallway doors. All-metal construction for durability and positive locking. Backset (distance from the edge of the door to the center of the doorknob) adjusts from 2-3/8 to 2-3/4 inches for customized clearance Includes complete instructions for easy installation. - 10-year mechanical warranty. - Easy installation, all-metal. 10 year mechanical warranty. Passage knobs and levers are designed for hallway doors, laundry rooms and closet doors that latch but donΓÇÖt lock. Lewis Hyman Atlas Satin Nickel Wave Door Levers Passage - Home Security