trimmer line Size:1.0-5.0mm Shape:round,square,star,hexagon,heptagon Package:card head ,double blister,spool. professional grade trimmer lineDiameter ... . Shape: Round, Square, Star, Trigon, Hexagon and HeptagonQuality: Commercial Grade, Professional GradePacking Specifications: A: Blister Donut PackageB: Card Head PackageC: H ...