1、STRONG COMPATIBILITY: Designed for flated trucks and trailers with standard 2in x 4in stake pockets, this 12000 lbs D ring stake pocket features 4 pin holes for precise positioning, ensuring a perfect fit for stacking bags. 2、STURDY ALLOY STEEL CONSTRUCTION: Made of rugged alloy steel, the heavy duty stake pocket D ring is reliable and can easily withstand most truck or trailer loads. The black finish resists wear and rust, extending its service life. 3、VERSATILE ANCHOR POINT: Convert your truck or trailer stock pile pocket into a raised D ring anchor point with this D ring pile pocket. It can be used with various hooks and end accessories, reducing the chance of belt wear. 4、LARGE LOAD CAPACITY: Heavy duty trailer stake pockets has a maximum load capacity of 12,000 lbs. Equipped with pin and hook assembly to connect to truck or trailer stacker port. 5、EASY TO INSTALL: This stake pocket D rings can be quickly installed using hitch pins. Simply pull the pin and reposition it as needed under different loads, giving you more convenience.