Anti-theft Security Door Lock Mechanical Password Door Lock Safe Home Gate Lock Door Hardware Indoor Outdoor Lock KeylessFEATURES Fits in both right & left opening doors 100% Mechanical Operations No key, no power required, water proof and heavy duty. Suitable for both indoor and outdoors. PARAMETERS Material: Zinc Alloy For door thickness: 35 60mm Backset: 60mm Package includes: 1 set of door lock with instructions Detail Size: As following photo, size unit is mm. Water proof and safe, no power required, no worry to be broken. Fit in both right and left opening doors.