These are universal bolt-on D-ring lashing points for shipping containers. Designed for shipping containers that do not have D-Rings welded inside, but also gives you the flexibility to place D-rings where you need them most. This product allows you to add extra lashing points or install D-rings on shipping container end walls – NO welding needed! The D-rings are computer modeled and powder coated dark grey. These D-Rings are easily installed and make securing loads, hanging shelving and other accessories a breeze.