grass trimmer 1. nylon line 2. shape: round, square, star, twist 3. diameter: 1.6mm - 4.0mm / 0.065" - 0.155" grass trimmernylon lineshape: round, square, star, twistdiameter: 1.6mm - 4.0mm / 0.065" - 0.155"package: clamshell, card, donut, spool Portable Grass Trimmer