[EASY INSTALLATION] Convenient to use, easy to install, making it a perfect substitute for traditional door locks. [DURABLE MATERIAL] Made of sturdy iron material, ensuring long-lasting use and reliable security. [VERSATILE APPLICATION] Ideal for double fan fire doors in hotels, families, and factories. [ENHANCED SECURITY] A good helper for personal security and property safety, providing peace of mind. [] Produced by the original factory, guaranteeing high standards and reliable quality., Manufacturer: Jelquix