... double blister economic grade durable and long lasting Nylon Trimmer Line Size:1.0mm---5.0mm Shape:round, trigon, square, ... ,hexagon,heptagon,twist,saw blade Color: Any color Nylon Trimmer Line 1. Diameter:1.00mm-5.00mm.2. Color: any ... most leading trimmers and brush cutters2. Outstanding impact toughness3. Ultra weld-resistant performance4. Directional aerodynamics always presents the cutting blade ...