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800 Pounds of Force - Made of heavy-duty material, it can withstand up to 800 pounds of external force and offer maximum resistance against kicking, sliding, or unauthorized access. Protect your home, apartment, or rental space with reliable security for inward-sliding doors.

Complete Reinforcement Kit - Each lock comes with high-strength screws for secure installation. These screws ensure the lock is firmly fixed to the window and door plate, eliminating loose connections that compromise security. No additional hardware is required, and it can be used straight out of the box.

Designed for Inland Sliding Doors - Designed for inland sliding doors (common in most homes), the locks connect to the window to prevent forced entry. Easy to connect/disconnect from the inside: the lock can be easily placed in position for security or used normally by releasing it.

Flexible 1/2/3-pack option – choose from 1, 2, or 3 packages to cover multiple doors (front door, bedroom, home office) or keep spares. Ideal for homeowners who want complete home security, landlords equipping their rental properties, or anyone who prioritizes the protection of homes on different floors.

Easy to install; no professional tools are needed for daily use. It is simple to position the door and window and install with a drill in a few minutes. The light and thin design does not interfere with the door handle or decoration, and the smooth sliding mechanism ensures that people of all ages can easily perform daily operations.