Compatible with WORX WA0010, GardenNinja Replacement Trimmer/Edger Spool features10-foot helix design trimmer/edger line for more efficient cuts. Factory wound spool offers reliable and consistent operation. Guaranteed fit with the following WORX trimmer and edger models: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165, WG175, WG180 or your money back. Package including 6 WA0010 compatible Spools plus 1 Cap compatible with WA6531.