Secure Double-Sided Mechanical Password Locks for Courtyard Doorways

Sturdy fixing bolt design, no noise, give you a quiet utilizing expertise.
Fabricated from excessive‑high quality zinc alloy materials, anti‑rust, sturdy and has an extended service life.
Utterly mechanized, no battery or wired energy is required.
Waterproof design, appropriate for picket doorways, patio doorways, courtyard doorways, indoor and outside doorways.
1‑11 digit mixture key password setting. Double‑sided password, passwords are required for each inner and exterior doorways, with channel anti‑lock operate and indoor anti‑lock operate, any inner and exterior locks or kno