Enhanced Security Features: The arm connection of our door closer is reinforced with a metal ring for a more secure fit. A thick, solid arm ensures robust closing force, while upgraded nylon rollers with a protective film allow for smooth and quiet operation. Construction: Crafted from high-quality Material, our door closer is designed to resist deformation and rust. It features strong wear resistance for long-lasting performance, and the strength of the door's swing can be adjusted for practical use. Versatile & Adjustable Design: Measuring 6.3x3.8x0.79 inches with a maximum opening angle of 175 degrees, our door closer is fully adjustable and compatible with both left and right-hand doors. It's ideal for doors weighing between 45lb and 80lb and less than 1000mm in width. Complete Package for Easy Installation: This set includes Everything you need for a hassle-free setup is provided in one package. Ideal for Various Settings: This automatic spring door closer is perfect for ensuring doors close automatically in residential or commercial settings such as bedrooms, bathrooms, offices, and hotel rooms, enhancing privacy and security., Manufacturer: Jnchdghwa