Arnold Xtreme .080-Inch x 40-Foot Professional Grade String Trimmer Line Replacement professional grade trimmer line Universal / Fits most straight and curved shaft string trimmers Hardened cutting edges for durability, soft inner compound for flexibility, long lasting, fewest rewinds 40-feet of green line, 4-Point Star Contains 2 refills Replacement professional grade trimmer line Universal / Fits most straight and curved shaft string trimmers Delivers the durability and performance a professional landscaper demands; Cuts nine times more area than residential lines Features hardened cutting edges for durability, soft inner compound for flexibility, long lasting quality, and few rewinds .08" diameter, green line, 4-point star; Contains 2 refills and measures 40 ft.