SAFE & SECURE FOR ADDED SECURITY,Keyed Entrance: install on exterior doors (including knobs or handle sets); Be locked with keys outside and turn buttons from inside,please note each lock with different Key MATERIALZinc; Color:Oil Rubbed Bronze;Lock set with Black finish that will not rust, durable for long lasting use.Great Quality and High SecurityConformed with ANSI Grade 3 Exceeds 250,000 cyles and 5 pins brass tumbler cylinder;Solid Column security bolt for anti-sawing protection Adjustable LatchAdjustable 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 con