【Sturdy Aluminum Alloy Material】Our 3-inch door reinforcement lock is made of sturdy aluminum alloy, equipped with 8 reinforced screws (4 long and 4 short). It is stronger than standard door locks, effectively preventing unauthorized entry and safeguarding your family’s safety. 【Reliable Security Design】This home security door lock is a practical option for enhancing home safety. It not only prevents break-ins but also can be easily opened in emergencies. It is capable of withstanding 800lbs of force, providing robust protection against external intrusion. 【Quick & Easy Installation】This door reinforcement lock can be installed in just 5 minutes using a power drill. You can complete the installation with the included screws, allowing you to quickly upgrade your home’s security without complex operations. 【Child Safety Protection】This door lock can be mounted in areas out of children’s reach. It features a spring-loaded design that stops children from opening the door to strangers, offering additional safety for your kids. 【Responsive After-Sales Support】If you encounter any questions or issues, please contact us promptly. Our service team will provide you with professional and satisfactory assistance to address your concerns., Manufacturer: HZUIZXYO