30ft 0.065" AF-100 replacement string trimmer line Compatible with original spools models AF-100, AF-100-3ZP, AF-100-BKP, AF-100-2 Compatible with black+decker trimmer GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST400, LST420 and LST136 Integrated with Automatic Feed Spool technology, manual winding is cumbersome and can easily get stuck during use, which can cause damage to the string trimmer Wear eye protection and long pants when using this product to avoid injury caused by spilled lines. The product is only suitable for young grasses. For strong weeds, use other tools such as blades to trim You will get 8 Spool+1 Cap +1 Spring,Pls contact us first when you get some problem, we will offer you assistance asap Compatible with black decker string trimmer: GH900, GH600, LSTE525, LST300, BESTA510, LCC340C, LST522, ST8600, ST7700, ST7000, ST6600, NST2118, NST2018, NST1118, MTE912, MTC220, LSTE525BT, LSTE523, LST420, LST400, LST220, LST201, LST140C, LST136W, LST136B, LST136, LCC222, LCC221, LCC140, GH912, GH610, GH500, GH400, CST2000, CST1200, CST1000, BESTE620, BESTA512