MATERIAL: Made of Stainless Steel; Satin Nickel Finish; 10 Pack entry knobs with lock and same keys KEYED ALIKE ENTRY FUNCTION: Door knob key lock can be unlocked by key outside or by turn button inside. Multiple handles can be opened with the same key. APPLICATION: Door knobs with lock and key for inside outhside door use. Best used for residential interior doors where keyed entry or security is needed. ADJUSTABLE LATCH: Keyed entry door knob with an Adjustable backset 2-3/8 - 2-3/4 inches (60-70mm) with universal latch fits most doors. EASY INSTALLATION: Easily installs in minutes with just a screwdriver to quickly enhance the look of your doorway. UNIVERSAL HANDING: fits both right handed and left handed doors. Lifetime mechanical and finish warranty