About this item Material: The automatic door closer is made of high quality zinc alloy and stainless steel, with one-piece process, corrosion resistant and durable. Adjustable design: The door closer can be positioned on the left or right, reduces the closing force of the door, avoids damage to the door, so it is convenient and practical, also prevents you from forgetting to close the door Wide range of applications: The door closer is for fire doors, hotels, condominiums, residential complexes, offices, interior doors, bedroom doors Unique design: The door closer features a double spring structure and roller design to protect the door from damage and reduce noise. Package contents: 2 pieces of automatic door closers, and the door closer measures about 12.6 x 3.4 x 13.5cm, the suitable size is to meet your daily needs. Specifications: Material: Zinc alloy + stainless steel Product Name: Automatic door closer Size: 12.6 x 3.2 x 13.8cm, Color: White Suitable for: door weight 15-30kg