The Vevor mechanical keyless entry door lock provides secure battery-free access for indoor and outdoor doors. Its upgraded 2.0 mechanical keypad allows direct code changes without removing the lock, and it supports 4-7 digit combinations using numbers plus X and Z. The double-sided keypad design helps control entry from both sides, while hold-open mode makes frequent passage easier. Built with a zinc alloy body and rust-resistant coating, it is designed for reliable everyday use. It also fits a range of door thicknesses and includes multiple spindles and latch sizes for flexible installation.