Thecomponents are made from special quenched and tempered alloy steel, a guarantee for very high strength, low weight, high wear resistance and long life.Sngl Leg 3/8 in Adjstbl Chain Slng GG1-GBK, 12ft L, 8800lb WLL Slings are double tagged for safety and all lifting components are uniformly marked with equivalent chain size, grade, manufacture's designation and name for positive identification.