Mechanical Combination Lock: This mechanical keyless entry door lock features a full mechanical structure that's hard to pry open and requires no charging or batteries. Easy installation and operation provide excellent anti-theft performance, with adjustable left and right handles for flexible use

Universal Compatibility for Different Doors: This mechanical keyless door lock comes with multiple sets of screws and a square shaft, fitting doors with thicknesses ranging from 1.4 to 2.5 in (35-65 mm). Ideal for various door types such as courtyard gates, outdoor gardens, garages, storage rooms, wrought iron doors, aluminum alloy doors, and fences

Durable Zinc Alloy Material: The latch bolt is made from high-quality zinc alloy; this keyless mechanical combination door lock is coated with a corrosion-resistant electroplated layer for enhanced waterproof and rust-proof protection. It ensures the security of your home in all weather conditions, including cold winters, hot summers, and rainy days, delivering a longer work service

Easy Door Lock Replacement: The adjustable handle suits both left and right doors. Equipped with two latch bolt sizes and wide, reinforced pads, it avoids the need for large holes to install the mechanical door lock, preserving the aesthetic of your door while ensuring security