Durable Carbon Steel: This spring door closer is made of high quality carbon steel. The material is thick and durable, not easy to deform. The surface has a smooth chrome finish for added protection, reduces friction and noise so you can use it with confidence. Automatic Close: This bar door closer adopts a spring-loaded automatic door closing design, which automatically restores the closed state by the spring. It is not necessary to close the door after entering the door, and can effectively reduce the force when closing the door and protect the door from damage. Adjustable Tension : This garden door closer can adjust the spring tension according to your actual needs, it is suitable for heavy and light operations, simplifying your daily life. The door closer reduces the force when closing the door. Fully automatic closing and adjustable speed, giving you a secure door locking mechanism. Easy to install: This interior door closer is easy to install, just install and install. screw it between the door frames. Both left and right doors can be installed. Set includes 1 14 inch black spring door closer, 2 locating pins and 1 adjusting pin, 4 screws. Wide range of applications: This closer exterior door is ideal for front doors, gates, farm fences, garden fences and all kinds of left and right wooden door springs. Widely used in home, garden, interior and exterior wooden doors and aluminum doors, giving you more usage scenarios. Size: 36*3.5*2cm (please see picture for details)