Features： 1、D Ring Set: This set includes 4 1/2in D rings with a 6000Lbs load capacity, suitable for heavy duty trailer, perfect for securing vehicles, aircraft, boats, and other heavy items on trailers. 2、Multi Functional Use: The high strength carbon steel material provides excellent durability and load bearing capacity, ensuring long lasting stability and reliability for your trailer. 3、Versatile Application: Not only suitable for heavy duty trailer, but also for home renovation, outdoor sports, and other occasions, ensuring the safety and stability of your items and vehicles. 4、Enhanced Safety: The D ring set is made of high strength materials with anti corrosion and wear resistance properties, providing a reliable and professional solution for securing your trailer. 5、Secure and Reliable: With a black color and a 6000Lbs load capacity, these D rings are suitable for heavy duty trailer tie down rings, ensuring that your journey is safer and more reliable. Specification： Item Type: Trailer Tie Down Rings Material: Carbon steel + zinc Color: Black Single Load Capacity: Approx. 2721.55kg / 6000lbs Surface Treatment: Galvanized and Powder Coated Fitment: Fits for Trailers, Heavy Duty Trailer Tie Down Rings Package List： 4 x D Ring 4 x Base 16 x Nut 16 x Bolt