High-quality zinc alloy: This lock uses high-strength zinc alloy, which is sturdy and and has a longer service life. Electroplating process, easy to lose varnish. Stylish elegant black. Adjustable solid-state lock: complex design latch, adjustable: 60mm (2-3 / 8 inch) or 70mm (2-3 / 4inch) to adapt to different installation situations. Also equipped with anti-aliasing protective latch bolts. Compatible with 35-53mm doors: support left and right hand opening. Compatible with 35-53mm thick doors, such as: aluminum alloy doors, steel doors, old-style ball lock doors, etc. Free door lock: We also provide you with a free door lock to prevent children from easily opening the door. It is easy to use simply by peeling the film and mounting it firmly on the door. Wide range of applications: Quickly installed door handles with locks and keys, suitable for home or business use, such as: bedrooms, schools, shopping malls, apartments, offices. Description: Material: Zinc alloy Colour:Black Lock tongue type: oblique tongue Door opening direction: regardless of left and right () Door thickness: 35-53mm Adjustable latch: 60mm (2-3 / 8 inch) or 70mm (2-3 / 8inch) Package Contents: 1 x Doorknob gloves 1 x mounting accessory kit 1 x door handle lock kit 3 x key Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.