... economic grade durable and long lasting Nylon Trimmer Line Size:1.0mm---5.0mm Shape:round, trigon, square,star,hexagon,heptagon ... ,twist,saw blade Color: Any color Nylon Trimmer Line 1. Diameter ... upon clients' requirements.3. Shape: round, trigon, square,star,hexagon,heptagon,twist,saw blade ,etc4. Material: Nylon 65. Grade: Economic Grade, ...