[Standard front door handle] front door lock set is produced professionally to match all standard doors of 1-3/8 'to 1-3/4' thick. The back of the latches can be set to 2-3/8 'or 2-3/4'. The hole drilling end of the arm can be adjusted between 7-7/8 'to 9'. The standard is easy to install to fit the pre -drilled doors. (Please note that the latch plate cannot be removed.) . [Heavy Service Material] The front entrance lever should be used with an existing bolt or electronic smart slide lock. Solid zinc alloy uses advanced electrocapping spray paint and has a high -strength corrosion prevention feature, a smooth surface that does not contain impurity. ANSI CLASS 3 standard, door handles are designed and tested with strength and durability. Suitable for commercial and housing. . [Front door lock lever matches] entrance door handle set door handle, door handle, latch bolt contains (bolt not included). Lubricated bronze front door handle slides, entrance door lock, electronic and so on. Suitable for. It is suitable for front doors, rear doors or office doors, creating a , warm and comfortable living space for your family and children wherever you need key entrance and security! . [Easy to install] is easy to assemble with a Phillips -headed screwdriver and adjustable latch design can match the most standard housing gate. Please be careful that this handle set does not contain any locking mechanism and key, and not to dismantle it hardly, otherwise the arm may jam and may not be able to move. . [satisfaction customer guarantee] Support 1 -year for your front door handles, lifetime technical . WARNING WARNING: This handle does not contain any locking mechanism and key. Please be careful to align the screw holes and do not remove and disappear hardly, otherwise the arm may be stuck and may not move.