Shape, package, diameter and color as per customers' requirements Features:1) Diameter: 1.3 - 4.0mm / 0.050" - 0.155"2) Shape: round, square, star, heptagon, twist, saw tooth 3) Suitable for most trimmers and brush cutters4) Premium quality for cuttingInner packing:Card head, blister, spool... Trimmer Line