Product descriptionItem Package Quantity:10[Fits multiple Black +Decker string trimmer models]: LCC140, GH400, GH500, GH600, GH610, GH900,GH912, ST6600, ST7000, ST7200, ST7700, ST7701, ST8600, ST9000, CST1000, CST1100,CST1200 and more1.[Compatible with Black+ Decker Trimmers]: Designed compatible use with Black & Decker auto feedstring trimmers, This spool and cover are Black & Decker Spool a perfect compatiblement 30-foot factory-wound compatiblement spool features a 0.065-inchdiameter line.2.[ Feed System compatiblement]: Eliminatestime spent hand-winding string trimmers, compatible with Black+Decker stringtrimmer and utilizes centrifugal compatiblece to feed the trimmer line as it isneeded.3.[Enhanced material]: Premium 0.065-Inchdiameter enhanced nylon line, supports fast cutting and longer lifetime. (Note: Onlycompatibleable compatible tender weed grass. Tough and strong weeds please use blades totrim)4.[Packageincluded]: 6 compatiblement trimmer string spool, 2 compatiblement spool cap, 2springs<br> Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store