Description If you're tired of messing with trimmer line, this simple and convenient Spools is the solution for your trimmer. Simply remove the old spool, replace it with one of the new pre-wound spools and you're ready to get back to work. Pliable and flexible, it allows for the line to stretch and cushion on impact with hard surfaces. Feature - Color: As shown- Material: Nylon- Size: φ1.65mm x 9.144- Made of quality nylon, providing longer lasting commercial cutting.- Easy to use and install, and save you time and energy.- Pliable and flexible, it allows for the line to stretch and cushion on impact with hard surfaces.- Choice of landscaping professionals.- Premium 30-foot/0.065" replacement line:30-feet replacement line is factory wound for a superior feed.Auto Feed System replacement spool eliminates time spent hand-winding string trimmers.- Included 8 Pack 0.065" Replacement Trimmer Spool, 1 pack replacement spool cover,1 pack replacement spring.- Fits multiple string trimmer models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST400, LST420, LST136.Packing list: 8 x Replacement Spool1 x Trimmer Cap1 x Spring