VEVOR Mechanical Keyless Entry Door Lock, 14 Key Mechanical Door Lock, Mechanical Keypad Door Lock with Adjustable Thumb Knob, Single-Side Zinc Alloy Waterproof Keyless Gate Lock, for Home Office

2nd Generation Mechanical Combination Lock: This mechanical keyless entry door lock features a fully mechanical structure, making it tamper-resistant and avoiding the need for charging or batteries. Easy to install and operate, it provides high security. The second generation makes password changes even easier, and the adjustable left/right handles add more flexibility,Universal Compatibility for Various Doors: This surface-mounted mechanical keyless door lock requires no extra drilling. It comes with multiple sets of screws and square shafts, making it compatible with doors ranging from 1.4 to 2.5 in (35-65 mm) in thickness. Ideal for gates, garden doors, garages, storage rooms, wrought iron, aluminum, and fence doors,Durable Zinc Alloy Material: Made from high-quality zinc alloy, this keyless mechanical combination door lock features a corrosion-resistant electroplated coating for enhanced durability. It is resistant to water and rust, ensuring security through all weather conditions—from cold winters to hot summers, even rainy days,Easy Door Lock Replacement: This mechanical door lock comes with an adjustable thumb knob for left and right door use. The expanded and widened pads make it easy to install without large holes, helping maintain your door's appearance while providing robust security,Automatic Locking & Hold-Open Mode: The mechanical combination door lock automatically engages when the door closes, so you never have to worry about forgetting to lock it. The hold-open mode is ideal for areas with frequent entry and exit, making it easy to move in and out