Suitable for left and right opening doors, fixtures and fittings all included along with installation instructions. This door closer works with all types of medium doors -- right and left opened doors, wood and metal doors, residential and commercial doors, exterior/interior door closer, fire doors, glass doors with frame and etc. Antioxidative, anticorrosive, rustless, steady, abrasion resistant, weatherproof, hydraulic, quiet and safe closer. Gives you an easy and safe life, protects your door and lock. Features adjustable speed settings for a smooth and quiet door closing experience, enhancing convenience and safety., Manufacturer: LKLNKVL