ratchet buckle. material:carbon steel, stainless steel. size from 1"to 4" B.S. from 800kgs to 10000kgs. ratchet buckle.material:carbon steel, stainless steel.with all sizehigh breaking loadFor more info, pls contact us,or check website www.sunwayindusty.com www.trailerparts.cn ratchet buckle 1'' to 4'' supplied