... .0mm. *Shape:Round ,Square ,Star,ect. product details: Grass Trimmer Line for brush cutter Material100%nylonDiameter0.8mm-5.0mm Lengthaccept your fixed-length ... ShapesRound ,Square ,Star,Square twist,Ellipse twist,Beads,Dual power, Saw bladed,Star Twist,Hexagon,Heptagon ,etc. GradeEconomic Grade, Commercial Grade ... , please do not hesitate to contact me! Best Sale! Grass Trimmer Line for brush cutter