1)12years of production experience, 2)material:100% nylon 3)Profile:round,square,star,etc nylon ... trimmer line/nylon cutting line1.packing with card head,2.homowner grade trimmer line3.100% copolymer trimmer line is designed ... , STAR, TRIGON, HEPTAGON, TWIST, ETC) .130''*30FT Nylon Trimmer Line in Garden