This sliding door latch operates with a numeric password instead of keys or physical locks, offering keyless access control for interior and exterior doors. It features a 90° or 180° adjustable mounting orientation to suit different door configurations and frame types. Built from solid zinc alloy with multi-layer surface coating, it resists corrosion from moisture and outdoor exposure. The compact dimensions measure approximately 4.375 in. in length, 1.1875 in. in width, and 1.03125 in. in height. Installation works on left- or right-swing doors and requires only basic tools and the included screws. Its black finish blends discreetly with common architectural elements. Designed for versatility, it secures gates, shed doors, barn doors, cabinets, drawers, mailboxes, and storage enclosures. No batteries or wiring are needed the mechanism is fully mechanical and relies solely on user-entered combinations. Size: small.