Material: The automatic door closer is made of high quality zinc alloy and stainless steel, with a one-piece process, corrosion resistant and durable. Adjustable design: The door closer can be left or right handed. right, Reduce the force of closing the door, avoid damaging the door, so comfortable and convenient, Also prevents forgetting to close the door. Wide Range of Applications: Door closer it is for fire door, hotel, condo, residential complex, office, interior doors, bedroom door. Unique Design: The door closer features double spring construction and roller design to protect the door from damage and reduce noise. Package Content: 2 pieces automatic door closer, and the door closer measures about 12.6 x 3.2 x 13.8 cm, suitable size is to meet your daily needs.