THTEN SF-080 Trimmer Blades Head Replacement Spool 20Ft 0.080 Compatible with Black & Decker GH3000 LST540 GH3000R LST540B Line String Trimmer 20 Pack WA0007 Cap Compatible with Black and Decker

Compatible with Black and Decker models: GH400

just push this trimmer head into the stringer socket and it will automatically lock into place with the help of the side button

It Also Will Fit Other Husqvarna Produced Brands that Require this Part 537185801 (AYP

Compatible with Greenworks 24V and 40V Dual Line String Trimmers

Compatible with WORX spools by the CNC machine cutting and winding

THTEN SF-080 Trimmer Blades Head Replacement Spool 20Ft 0.080 Compatible with Black & Decker GH3000 LST540 GH3000R LST540B Line String Trimmer 20 Pack WA0007 Cap Compatible with Black and DeckerCompatible with Black and Decker models: GH3000 LST540 GH3000R LST540B,easy to choose the right spool for your trimmer. Easy Installation: simply push this trimmer head into the string socket and it automatically locks in place with assistance from the side push buttons For Best Use: avoid using this accessory for edging, working alongside brick, chain, or wooden fencing Products Include: The package contains 6 Pack Polycarbonate Blades and 4 Set