Description: High-quality materials: the automatic door closer is made of high-quality zinc alloy and stainless steel. The integrated design and electroplating process make the spring door closer rust-proof, corrosion-resistant and durable. Adjustable tension: high-quality automatic door closer, hands-free adjustable tension, adjustable screw, used for slow or fast closing. Choose your reward to link the speed with the proximity to the environment. Wide use: The door weighs 20-40 kg, has a width of 1000 mm and a width of <>-<>Kg. The automatic door closer is applicable to left and higher door openings, wooden doors, metal doors, residential and commercial doors and external/internal door closers. Silence and noise reduction: the door closer automatic door uses nylon, which is not only quiet during use, but also reduces damage to the door caused by violent impacts when the door closes. Also avoid forgetting to close the door. Black color Material: Aluminum alloy Size: 122*167mm Package includes: 1*Door closer Note: Due to manual measurement, please allow small errors. Make sure you don't mind before bidding. 2. Colors may vary depending on the screen, please understand. Hello, please pay attention to your delivery address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly._XJ