Dual Safety Protection Features a spring antitheft press lock with a concealed shackle design that resists forced entry and prevents unauthorized access. Can be installed out of reach of children to stop accidental door opening and helps prevent pets from opening doors or passing through gaps. Provides reliable, allaround security for homes, families, and property. Safe Ventilation and Visitor Viewing Allows the door to open slightly while remaining securely locked, enabling you to see visitors without fully opening the door. Supports natural airflow for ventilation while ensuring that the lock cannot be opened from outside. Maintains safety and comfort without compromising security. Versatile Application Suitable for a wide range of scenarios including homes, bedrooms, hotels, apartments, offices, and rental properties. Ideal for homeowners, tenants, and businesses needing extra security in daily life or while traveling. Helps prevent unauthorized entry and protects valuables in any setting. Universal Door Compatibility Designed to fit all door types with flexible installation options above or beside the door frame. Adapts easily to different door structures, eliminating the issue of mismatched sizes. Simple installation process suitable for various usage needs. Practical Use Examples 1. In residential homes, installed above the main door to prevent forced entry and allow safe viewing of guests. 2. In hotel rooms, offering added security against unauthorized access while still allowing fresh air circulation. 3. In rental apartments or offices, providing an easytoinstall lock solution without the need for permanent modifications.