【High Quality】This Hydraulic Door Closer is made of commercial grade aluminum alloy, hydraulic operated, totally automatic closing, speed adjustable, gives you a easy and safe life, protects your door and lock. Note: This door closer doesn't support the hold open function. 【Purchase Notice】The Door Closer applies to door weight between 43~58kg (95lb~128lb), Not for light door, door width 65~115cm(25.6"~45.2"), Door open range: 180º maximum. 【Sturdy and Durable】It is made of commercial grade aluminum alloy, Antioxidative, anticorrosive, rustless, sturdy, abrasion resistant, weatherproof, hydraulic, with speed adjustable screws, provide quiet and safe closing. Can withstand the test by 500,000 cycles, to ensure the best performance. Complying with EN1154 Certification. 【Applicable Door Types】The door closer works with all types of medium doors -- right and left opened doors, metal doors, wood doors, glass doors with frame, home and office doors, exterior and interior doors. 【Easy to Install】Detailed installation instructions with handy diagrams and video provided makes you understand easily and install simply., Weight: 3.0 pounds, Manufacturer: Onarway