• 2nd Generation Mechanical Combination Lock: This mechanical keyless entry door lock features a fully mechanical design that's tamper-resistant and doesn't require charging or battery installation. With simple setup and operation, it provides strong anti-theft security. The second generation allows for easier password changes, and the adjustable left/right handles give added flexibility

• Universal Compatibility with Various Doors: This mechanical keyless door lock 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. It fits a wide range of door types including gates, garden doors, garages, storage rooms, wrought iron, aluminum, and fence doors

• Durable Zinc Alloy Material: The latch bolt is made from zinc alloy; this keyless mechanical combination door lock features a corrosion-resistant electroplated coating for enhanced water and rust resistance. It stands up to all weather conditions—cold winters, hot summers, and rainy days—ensuring your home stays secure with a long-lasting performance

• Easy Door Lock Replacement: With adjustable left/right handles, this mechanical door lock works for both left and right doors. The adjustable hole spacing (2.3 in/60 mm and 2.7 in/70 mm) and reinforced wider pads avoid the need for large holes, keeping your door's aesthetic intact while providing superior security

• Automatic Locking & Hold-Open Mode: This mechanical combination door lock automatically engages when the door is closed, so you won't have to worry about forgetting to lock it. The hold-open mode is ideal for areas with frequent access, providing convenient entry and exit