General description The Automatic Door Closer is a high-quality, adjustable device made from sturdy aluminum alloy. It is designed for both residential and commercial use, providing a reliable solution for ensuring doors close quietly and securely. This door closer protects doors from damage by reducing the force with which they close, making it ideal for various environments including homes, offices, and hotels. Technical specifications Material: Aluminum alloy Color: Black Size: Approximately 6.5 x 4.9 x 1.2 inches (16.5 x 4.9 x 1.2 cm) Suitable for door weight: 20-40 kg Door width: 1000 mm Maximum door opening angle: 175 degrees Installation Ensure a door frame is present, with a width of more than 3 cm. Follow the provided instructions for installation. Usage Suitable for left and right swing doors. Can be used on wooden doors, metal doors, residential and commercial doors, as well as fire doors. Adjustable closing force to meet personal needs using a fixed or loose round key.