1.Strong Steel: This trailer stake pocket D ring is made of steel construction with an excellent powder black finish to resist rust. Strong, durable and weather proof. 2.Wide Application: The D ring can be used as fixing points for various hooks (grappling hooks, J shaped hooks, S shaped hooks, shackles) and end accessories (ratchet belts, winch belts or chain staplers). 3.5400lbs Working Load: This D ring stake pocket tie down has a breaking limit of 16,200 pounds and a working load limit of 5,400 pounds. Comes with a stud and hook that can be attached to your truck or trailer pile pocket. 4.Precise Placement: Each stake pocket D ring comes with a hitch pin w/ locking cotter pin and 4 pin holes, so you can adjust the height of your stake pocket D ring to fit your current load. 5.Easy Installation: This stake pocket D ring can be easily installed. Just pull the pin and slide the stake pocket D ring right into the stake pocket and use the hitch pin to insert into the hole for your desired height and lock it into place using the cotter pin.