Cooper Hand Tools Campbell 5/16"- 3/8" Ratchet load binder is used in offshore oil, trucking, agriculture, timber and mining industries. Binder has a double action ratchet mechanism that gives a complete adjustability..Chain grade: Grade 70.Meets U.S. D.O.T. 393.100 -393.102 requirements for use with chain.Lifting height/take-up: 8".Used to tighten chain, typically for cargo securement.Chain size: 5/16" - 3/8".Finish: Yellow chromate.Weight: 11 lbs..Ratchet type for easier adjustment of tension and a greater range of take-up.Working load limit: 6600 lbs..Operating type: Manual-ratchet.Loadbinder marked with chain grade and working load limit on the handle.Dimensions: 3"(H) x 24"(W) x 15"(L).Type: Ratchet.Allows for easier adjustment of tension and greater range of take-up.Cooper Hand Tools Campbell 5/16"- 3/8" Ratchet load binder gives a classy look with its yellow chromated finish and has a working load capacity of 6600 lbs.