Premium Material: the automatic door closer is made of stainless steel , adopts integrated molding process and multi-channel assembly process, makes the whole product durable and sturdy.You can tighten or loosen the adjustments using a hex key. Adjust the tension for slow or fast closing, choose your return closing speed based on the environment the door closer is placed in.Application: Ideal for home, office, hotel room closet door. Door closer spring provides you easy and safe life, protect your door and lock.Delivery Quantity: 1set,(Package contents: Only the above package contents, excluding other products.)Size: The detailed size is shown in the picture(Reminder: The size is measured manually, please allow 1-2 cm measurement error)Color: silver(Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)