Black Decker String Trimmer Line, White, Dimensions: 0.065 in x 30 ft, Suitable for: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, ST8600, CST1000, CST1200, CST2000, MTC220, MTE912, LST522, LSTE523, LSTE525, NST2018, NST1118, NST2118, LST140C, LST220, LST300, LST400, LST420, LST136, LST136W Grass Hog String Trimmers