【Premium Material】Our self-close gate spring are made of high quality steel with black powder coating, anti-corrosion, and anti-rust. The heavy-duty spring design ensures durability, excellent elasticity, and long-term outdoor performance, solving the easy-fracturing problem of welded connection. 【Adjustable Spring Tension】Our gate closer supports both left- and right-open door. It is easy and convenient for users to set and adjust the spring tension of our automatic spring gate closer by using the tension pin and regulator tool to change the closing speed of the gate. 【Self-Closing & Wide Application】Adjustable Fence Gate Spring provides a self-closing mechanism that ensures the door close automatically.The unique adjustbale tension design fits for outdoor Vinyl gates, garden fences, and various wooden doors. 【Easy to Install】It is safe and easy to install the Gate Spring with our Step-by-step installation Guide. The door spring hardware Kit includes mounting instructions and fasteners to help you install easily. Note: Please make sure the tension pin is on the outward side of the spring and not too tighten the screws when you are installing a vinyl fence. Please do not hesitate to contact us with any problems. 【Package Included】 1 x 13 inch self closing gate spring, 1 x tension pin,4 x installation screws and 1 x instruction manual. Suitable for both heavy and light operations. (Only gate spring included. You should purchase the gate separately if needed.) Introducing our premium 13" Gate Spring Self-Closing System, designed specifically for outdoor doors and gates requiring heavy-duty performance. This robust hardware solution ensures seamless and automatic closure of your metal gates, providing convenience and security in one package. Perfect for wooden and vinyl fences alike, our gate closer features adjustable mechanisms to tailor the closing force to your exact needs.