Campbell Load binder is designed for tightening chain in cargo securement. Load binder has 8" lifting height with 5400 lbs working load limit and comes with 5/16", 3/8" chain..Chain size/grade: 5/16-inch/70, 3/8-inch /43.Meets U.S. D.O.T. 393.100 -393.102 requirements for use with chain.Load binders working load limit: 5400 lbs..Red color.To tighten chain, typically for cargo securement.Imported.Load binders operating type: Manual-Ratchet.Take-Up: 8-inch.Allows for easier adjustment of tension and greater range of take-up.Campbell Load binder allows easier adjustment of tension and greater range of take-up.