Arnold Xtreme .105-Inch x 30-Foot Professional Grade String Trimmer Line Xtreme .105" Trimmer Line Universal / Fits most gas string trimmers Hardened cutting edges for durability, soft inner compound for flexibility, long lasting, fewest rewinds 30-feet of red line, 4-Point Star Contains 2 refills Replacement professional grade trimmer line Universal / Fits most gas 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 .105 diameter, red line, 4-point star; Contains 2 refills and measures 30 ft.