NON LOCKING DOOR LEVERS,Passage door locks are used on doors in hallways, closets, and other rooms where a key is not necessary. The passage/hall/closet function is freely operational from both sides of the door at all times. MATERIAL：Stainless SteelColor:BlackStainless Steel Plated, Lock set with Black finish that will not rust, durable for long lasting use.Great Quality and High Security：Conformed with ANSI Grade 3 Exceeds 250,000 cyles and 5 pins brass tumbler cylinderSolid Column security bolt for anti-sawing protection Adjustable Latch：Adjustable Latch with Backset 60mm(2-3/8") or 70mm (2-3/4 '')Fit all doors 35 to 45 mm ( 1-3/8 '' to 1-3/4 '')thick,Notice: The latch plate is square, and can't removable. SIMPLE &EASY INSTALLATION – Easy and simple fitting helping to save you time and gives a safer and more secure installation. No small and fiddly parts, just reliable solid hardware that will pass the test of time.Packaged individually to ensure they arrive to you in perfect condition - every time. Package Includes: Selected Knobs, Mounting Screws, Installation Instructionsplease check these parts before install.