The copper core spherical door lock is crafted from premium full-copper core material, ensuring superior security and long-lasting durability. Its elegant spherical design not only looks refined but also adheres to ergonomic principles for a comfortable grip. This model features a specially designed silent opening mechanism that ensures smooth, quiet operation without disturbing the surrounding environment. Suitable for various types of interior doors in homes, hotels, and offices, it offers users both convenience and peace of mind while adding an element of classic elegance to any space.