Crafted with high quality nickel-plated steel and strong plastic, it not only ensures the durability of the product, but also gives it an elegant luster. Designed for 12-21 lbs. and 18-19 in. in height, the door covers are designed to handle daily needs with ease, and the unique hydraulic damping system is the core of their safety. Say goodbye to the sudden slamming of doors and avoid the risk of accidental clamping. The hydraulic damping device built into the cover stay makes each opening and closing slow and gentle. Not only that, but it's also amazingly convenient. Once installed, the lid brace automatically keeps the lid open until you're ready to close it, freeing up your hands and making storing and retrieving easier than ever. Whether it's a clamshell for a toy box, a mirror lid for a dresser, or a vertical cabinet door and storage box, it fits perfectly, showing a wide range of uses and unlimited creative possibilities. The compact design is one of the highlights, even in small Spaces can be easily installed, does not take up extra space, while supporting a maximum of 105° of opening and closing Angle, to meet the needs of a variety of use scenarios. The installation process is simple and quick, and the detailed installation instructions are easy for you to get started, whether it is installed on the left or the right side, you can create your ideal storage space at your whim. Material: Metal.