Keep the door open within the 90~180 door opening range: When your opening angle exceeds 90, this door closer can keep the door open at any angle. You do not need to use external forces or door plugs to keep the door open. If you prefer a well ventilated room or need to move goods frequently, this will be your best choice. You only need to pull the door within 90 seconds and it will automatically close.High quality and adjustable speed: The hydraulic door closer is made of high-quality aluminum alloy. It can automatically and silently close your door. Improve the quality of your life. You no longer need to shout Close the door.. The door closer has two valves that independently control the closing and locking speeds. You can control the closing speed as needed.Easy installation and quality standards: The door closer is equipped with a detailed and clear installation manual and installation video. Installation is simple and smooth. The hydraulic door closer has passed CE, UL, 3C certification and fire test. Manufactured according to European production standards and widely applicable: Size 2 door closer springs are used for doors weighing 20-40 kilograms and having a width of 750-850 millimeters. Self closing doors are suitable for left and right doors, wood, metal doors, residential and commercial doors, exterior/interior door closers, fire doors, hotels, apartments, apartments, and warehouses. Color: As shown in the figure Package includes: 1 x door closer Note: Due to manual measurement, please allow a small error. Please make sure you dont mind before bidding. 2. Colors may vary depending on the display. Please understand. Hello, please pay attention to your shipping address when purchasing products. If your receipt information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly