... .strict size 3.easly for installation 4.long fatigue life Classic guitar stringsSpecifications Stainless Steel WireMaterials :304,304l,316,316l,410 ... atmosphere stainless steel wire usage Braiding Weaving, Spring Wires, Conveyor Belt Filters, Nail wire Screws, Cold Heading, Wall Tie TyingWires ,Re ... , Rope Wires, Knitting Kitchen wares, Ornaments, Scrubber, Mesh Hoses, Fencing Classic guitar strings