This door closer device suitable for residential and commercial use, it is easy to install and has very practical use, with it, you can make your door avert the huge impact caused by incorrect closing of the door. Come and have a try, it will not let you down. Features: With this tool, you can make your door avert the huge impact caused by incorrect closing of the door. Easy to install and suitale for both left and right open door, you can install it in door or wall according to your needs. Wide applications: This tool can be used in your home, office and commercial use, has a wide applications. Suitable for door weight for 20-30kg and door width 1000mm. The closing speed of the door can be adjusted by adjust the tension of the spring, you can control the speed by your like. Specifications: Material: Stainless Steel Color: black, gold, silver (optional) Package size: 155 * 45 * 43mm / 6.1 * 1.8 * 1.7in Package weight: 340g / 12.0ounce Packing list: 1 * Door Closer 4 * Screws 1 * Wrench