Feature:1. Thickening rocker arm to ensures the life of door closers, not easy to break.2. Telescopic boom can be adjusted and even if the door frame and doors are not in the same plane can also be installed smoothly.3. Universal installation of left and right doors, with a maximum opening angle of 180 degrees.4. Hydraulic operation, suitable for any type of door, wood/metal or indoor/outdoor.5. Made of quality aluminum material manufacturing ensuring maximum durability.Specification:Condition: 100% Brand NewItem Type: Door CloserMaterial: Aluminum Purpose: Hydraulic buffer door closersApplicable Scope: Door angle up to 180 degrees, suitable for indoor/outdoor, and suitable for most material doors, such as metal/wood doors, can also be used for fire doors..Package List:1 x Body 1 x Retractable Rocker 7 x Screw 1 x Dustproof Hat