Trimmer String 1)Diameter: .050' - .155' / 1.3mm - 3.95mm 2)Shapes: round, square, trigon, star, etc... 3)Porfessional maker Features:1) Diameter: .050' - .155' / 1.3mm - 3.95mm2) Shapes: round, square, trigon, star, hexagon, heptagon3) Quality grade: economical, commercial, professional4) Package: loop donut, 1/2lb donut, 1lb donut, 3lb spool, 5lb spool, 10lbspool, card head5) Suitable for most ...