QUALITYLight duty door closer is made of commercial-grade aluminium alloy, spring operation, totally automatic closing, gives you an easy and fe life, protects your door and lock. ALL PURPOSESuitable for doors opening to the left or right. Door frames and doors must be parallel. If the door frame is higher than the door, you need to use wooden blocks or other materials to lift the support and parallel to the door frame. STRUCTUREQuality stainless steel surface mounted automatic door closer, fine workmanship and reliable. Spring-loaded with austable tension, austable screws for slow or fast closing.(Effect without damping) Just use the matching metal screws to fasten each part in the right place,when austing, the control pin needs to be drawn out,then,use the hexagon wrench to aust the force(do not over tighten during installation) AUSTABLEuse inner hexagon austing roda to aust the closing speed and intensity. It is very convenient to use, you aust according to the actual needs of the fly door, and aust to the state that is most suitable for the door. door closer is a great alternative for use on interior and light weight exterior door applications. design has the features and appearance of a full-size closer but requires less space on a door for installation, and provides complete functionality for any opening. FEATURES: Thickened solid stainless steel chrome material, anti-rust. Tight arm connection point, increase the strength of the arm, smooth surface treatment to reduce product wear. Suitable for use in wooden doors such as home office hotels and aluminium doors. When the product is not in use, its arm is folded up, and it also be installed on the left and right doors. Installation: This product is installed on the wooden door frame or aluminium alloy frame. The installation position should be installed in the middle of the door frame and screw it tightly. Austment: Use the hex key to fit into the top hexagon socket screw hole. Aust the required force between the six austment holes according to the weight of the door. Specifications: Material: Stainless SteeSuitable for door width 1300mm Suitable for door weight80 kg Package Included: 1 x Door Closer/Door Opener