Lock Specification: Size 65 mm Double Stage Locking. ; Lever : 6 levers; Key Set : 3 Keys; Mortise Pair Specification : Material Base Plate: Stainless Steel; Material Handle : Stainless Steel; Mechanism Spring : Spiral Spring, SS 304; Finish: Satin ; Size : 177 mm (7”); Made of virgin Brass And Steel. This Lock Adopt To all Doors. Advanced production technology With precision molds And Tools. Standard and strict production requirements . The lock can be used for....Door lock for main door, lock for home, lock for home, lock and key, door lock with handle, door lock set, door lock and handle, door lock and key, door lock handle set and lock for home security.