Upgrade your security and privacy with this sleek door knob featuring a built-in door knob with lock and key mechanism. Crafted with durability and functionality in mind, this door knob offers both style and peace of mind. With its easy-to-use locking system, you can effortlessly secure any room in your home or office, ensuring the safety of your belongings and loved ones. Say goodbye to worries about unauthorized access and hello to enhanced security with this reliable door knob.