【High Quality】Made of sturdy steel, SANKEYTEW gate spring is durable and not easy to break, with a long service life and high security. It has a black coating on the surface, which is both rust-resistant and aesthetically pleasing. 【Excellent Elasticity】The spring tension can be adjusted through the locking pin and the complimentary adjustment tool to control the automatic closing speed. Excellent elasticity is guaranteed even after long time use. 【Quick Installation】Installation is convenient and fast, which can be done easily by following the included installation manual. Also please feel free to contact us if you have any questions. 【Wide Application】The spring door closer is suitable for fences, vinyl gate, metal gate, wooden gate and so on. It helps you realize automatic door closing, providing you great convenience. 【Package Includes】1 x 14" gate spring self closing, 4 x installation screws, 1 x fix pin and 1 x adjust rod, 1 x detailed instruction manual SANKEYTEW Gate Spring Self Closing can adapt to different closing speeds of different material gates by adjusting the spring's looseness and tightness, helping you to realize the automatic closing of the gate and preventing children and pets in your home from getting lost.