Part# 3.7038.16 -TruckTrailerPro transportation binder chains tested in certified testing facility, and passed all of the tests -All of the transportation binder chains meet all current cargo control standards of North America -Every single part of it manufactured in our facilities -TruckTrailerPro chains has 6,600 LBS working load limit -Chains have grab hooks on each end -Yellow zinc color -Can be called transportation chain, binder chain, binding chain, boomer chain, load chain, and also coil chain. -Highly recommended for flatbed, step deck, and double drop trailers -Recommended to take it out of service immediately if any kind of damage will be found