Passage Function/For Hallwall & Closet,KEYLESS: 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 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 MATERIAL: Stainless Steel; Color: Satin Nickel; Stainless Steel Plated Lock set with Satin Nickel finish that will not rust, durable for long lasting use. Great Quality and High Security: Conformed with ANSI Grade 3 Exceeds 200,000 cyles and 5 pins brass tumbler cylinder; Solid Column security bolt for anti-sawing protection 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