Durable Material: gutter extension hinges are made of high-quality aluminum to ensure long-term use. Easy Installation: Installation is accomplished in a few simple steps. Includes all necessary hardware, such as screws, magnetic nuts, and clips. Wide Application: Sewer extension hinges are widely used in various applications such as homes, villas, and other buildings. Functional & Practical: Sewer extension hinges have practical functions and improve your home's appearance. Make your home look more beautiful. Packing List: 2 sewer hinges with nine screws and a spacer