trimmer line;trimmer string material: 100% nylon6 size:1mm--5mm pack: 3lbs,4lbs, ... Twist,etc. GradeEconomic Grade, Commercial Grade, Professional Grade.,ect.PackingCard head,Loops,Donut,Spool.Quantity/CTN144PCS/120PCS/80PCS/40PCS/20PCSDelivery20 days ... .130inch103961471281471283.5mm/0.140inch91851301141301144.0mm/0.155inch70651008710087 3.0mm grass nylon trimmer line