Door Closer Automatic Hold Open Door Closer Adjustable Aluminum Alloy Hydraulic Spring Door Closer Variable Suitable for Residential and Commercial Light Doors, Easy to Open, Small (Black) [Applicable Range] The door closer is suitable for door weights of 25-65kg, door widths of 60-120cm, and opening range: the door stops at 90° or more and automatically closes at less than 91°. [High Quality and Speed Adjustable] Hydraulic door closer made of aluminum alloy, hydraulic operation, fully automatic closing, speed adjustable, no need to worry about opening and closing the door. The hydraulic door closer has passed the national 4C certification and fire protection tests, protecting the door lock. [Robust and Durable] Aluminum alloy material is rust-proof, corrosion-resistant, not easy to rust, strong and stable, wear-resistant, hydraulic, quiet, long life, and less oil leakage. [Easy Installation and Quality Standards] The door closer has screws for adjusting the closing speed and locking speed. You can control the closing speed. [Wide Range of Applications] The door closer is suitable for installation on metal doors, fire doors, wooden doors, iron doors, home and office doors, security doors, and various types of door frames, and can be installed on the left or right. Management Number 14