... Shape:round, trigon, square,star,hexagon,heptagon,twist,saw blade Color: Any color Nylon Trimmer lineQuality Grade:Economic ... .Shape:round, trigon, square,star,hexagon,heptagon,twist,saw blade ,etcPacking:card head,loops/donut,blister card ,blister ... resistant performance4, Directional aerodynamics always presents the cutting blade forward5, Premium copolymer formulation for commercial toughness 6 ...