It is made of all copper, with the handle, panel, lock core, marbles and lock tongue all made of copper. It has excellent durability and corrosion resistance, is rust-proof and corrosion-resistant, sturdy and durable, and can extend the service life. The lock is designed with a round handle, featuring a simple and elegant shape. Its surface undergoes a brushed finish and multi-layer electroplating treatment, providing a smooth touch and a strong sense of texture. This lock is equipped with a silent magnetic attraction function. Its unique magnetic attraction structure makes opening and closing the door smooth, gentle and silent, reducing noise interference and enhancing the comfort of your home. At the same time, it offers a variety of lock body types to choose from, such as privacy locks, passage locks, and concealed door locks. You can also select styles with or without keys according to your needs to meet the usage requirements of different Spaces. In terms of installation, it is designed with a universal door opening direction, allowing for installation on both left and right sides. It is compatible with door thicknesses ranging from 35 to 50mm and is suitable for most residential doors. It is installed stably and is not prone to loosening.