General description These 2pcs door closers are designed for automatic door closing with mechanical speed control, capable of holding door weights up to 40 kg (20 kg per closer). They are suitable for various types of doors and come complete with all necessary fixings, including hex keys and screws. Technical specifications Maximum door weight: 40 kg (20 kg per closer) Door frame width requirement: greater than 3 cm Drop tolerance: must not exceed 3 mm Installation Install the door closer in the middle of the door if using only one closer. Ensure the door and door frame are kept in a horizontal plane. Adjust the closing force by inserting the hex key and turning it clockwise or counterclockwise. All required fixings are included for simple installation. Usage Suitable for various types of doors.