All-Weather Mechanical Keyless Lever Door Lock (Satin Chrome) Reliable Heavy-Duty All-Weather 100% Mechanical Operation - No Batteries Needed Unlocks by Code or Standard Bypass Keys (2 keys included) - Automatic Relocking Easy Mode Change: Locked Mode(use key or code to unlock) & Passage Mode(no key or code needed) Compatible for Installation in Both Left & Right Opening Doors Available in Antique Brass, Oil Rubbed Bronze and Satin Chrome Finish