Parts List: 1×Door Closer 4×Screws Highlight description: Quiet and Safe: Our double spring door closer is gentle and silent. Automatically close and lock, keep quiet and safe, protect the door from damage, and reduce noise Stable Performance: This automatic door closer adopts one-piece molding and multi-assembly process, with stable structure, stable performance, overall sturdiness and enduring, and not easy to rust Easy Installation: It is easy to install, both left and right installations can be used. Just flip the door closer 180 degrees to achieve it. Please pay attention to the installation direction: follow the instructions, the arrow is facing the direction of the door Double Spring Design: Built-in strong double spring, each door closer can bear 20-60 KG. Spring door closers can be used for doors weighing up to 132 lbs Widely Uses: This safety spring door closer is widely used for commercial buildings, offices, hotels and residences, especially doorways that require frequent entry and exit. It not only facilitates people to enter and exit, but also improves the safety and comfort of the door Detailed description: Description: This door closer has built-in strong double spring, automatically closes and locks, and keeps quiet and safe. It adopts one-piece molding and multi-assembly process, which is sturdy and enduring. Easy to install, installation is not divided into left and right, suitable for commercial buildings, offices, hotels and residences, etc. Feature: Easy to Use: This double spring door closer is easy to use and install, which can be used for doors weighing up to 132 lbs. It has stable structure. Enduring: Sturdy and enduring, not easy to rust. It is gentle and silent, which can protect the door from damage. It can improve the safety and comfort of the door. Specification: Product Name: Double Spring Door Closer Material: Aluminum Alloy Size: 17×3.5×3.2 cm Color (Optional): Black, White Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement. Easy Installation: It is easy to install, both left and right installations can be used. Just flip the door closer 180 degrees to achieve it. Please pay attention to the installation direction: follow the instructions, the arrow is facing the direction of the door Quiet and Safe: Our double spring door closer is gentle and silent. Automatically close and lock, keep quiet and safe, protect the door from damage, and reduce noise Stable Performance: This automatic door closer adopts one-piece molding and multi-assembly process, with stable structure, stable performance, overall sturdiness and enduring, and not easy to rust Double Spring Design: Built-in strong double spring, each door closer can bear 20-60 KG. Spring door closers can be used for doors weighing up to 132 lbs Widely Uses: This safety spring door closer is widely used for commercial buildings, offices, hotels and residences, especially doorways that require frequent entry and exit. It not only facilitates people to enter and exit, but also improves the safety and comfort of the door