【Rust-resistant and durable】 The automatic spring door closer is made of stainless steel and zinc alloy. The use of a one-piece molding process and an electroplating process makes the entire product durable, rust-free and long-lasting.【Reduce intensity and noise when closing the door】Automatic door closer It can reduce intensity when closing the door to protect the door from damage. It also reduces noise interference when the door is closed, with adjustable tension and adjustable screws for slow or fast closing, creating a quiet, comfortable environment for you.【Adjustable design】 Our groom internal door closure adopts an adjustable design. You can use the included adjusting rod to insert the rotating hole and adjust the closing force as needed to increase the convenience of closing the door.【Easy to install】 This spring-loaded door closer is easy to install, both left and right doors can be fitted. Threaded connection, convenient assembly and disassembly, long-lasting and smooth use, improved efficiency and practicality. Size approx. 6.29 x 3.85 x 1.25 inches, suitable for 1000 mm door width (there may be slight errors in manual measurement).【Package contents】You'll get a door closer, 4 screws, an adjusting rod and a seal for the protective door. Suitable for doors up to 35 kg. The stainless steel spring-loaded door closer is easy to install, no need to buy additional parts.