This string trimmer replacement spool 3-pack erases the tedious work of hand-winding spools. Designed for use with Black & Decker Auto Feed System (AFS) string trimmers. The 30' factory wound replacement spools feature a .065" diameter line that utilizes centrifugal force to automatically feed the cutting string while eliminating bumps and hitches. Compatible with the following Black & Decker string trimmers: GH400, GH500, GH600, ST6600, ST7000, STS7700, CST1000, CST2000, NST2018, NST1118, NST2218, GH900, LST136, LST200, LST220, LST300, LST400, LST420, MTC220, MTE912 and other listed trimmers.
