1. Comprehensive Security Set for Enhanced Protection​ This 5-piece security solution includes 4 durable door jammer​ units designed to provide reliable protection for your home. Crafted from robust materials, these accessories offer an additional layer of security against unauthorized entry while ensuring ease of daily operation. The set is designed to integrate seamlessly with existing locking mechanisms for balanced safety and convenience . 2. Broad Compatibility with uPVC Windows and Doors​ Engineered for versatility, these window locks​ are compatible with various uPVC/PVC windows and doors, including sliding, casement, and tilt-and-turn types. The adaptable design makes them suitable for residential apartments, family homes, and commercial properties seeking to upgrade their security infrastructure without complex modifications . 3. Simple Installation with Included Accessories​ Each set comes with all necessary mounting hardware, allowing for quick and tool-free installation. The straightforward screw-fixing process requires no professional skills, enabling most users to securely attach the UPVC window lock​ in minutes. This user-friendly design helps reduce setup time and effort while maintaining a firm hold . 4. Resilient Alloy Build for Long-Term Use​ Constructed from high-grade alloy, these window locks​ resist wear, corrosion, and weather-related damage. The finish retains its appearance over time, ensuring consistent performance under varying conditions. This durable construction supports repeated use, making the locks a practical investment for ongoing security needs . 5. Versatile Applications for Whole-Home Security​ Beyond use as a door jammer, these locks function as cabinet fasteners, child safety devices, or window restrictors. The multi-purpose design offers extensive utility across different areas of the home, providing homeowners with a cost-effective solution for improving security in living spaces, storage areas, and access points ., Manufacturer: HBL