The Vevor mechanical keyless entry door lock provides secure access without batteries, wiring, or apps. Its all-metal zinc alloy construction and rust-resistant coating are designed for reliable indoor and outdoor use. The lock supports 4-7 digit combinations and fits a range of metal fence doors and wooden doors. Multiple operating modes, including hold-open and code-free passage mode, make it practical for busy entry points. It also includes multiple spindles and latch sizes to help accommodate different door thicknesses and installation needs.