Fits several WORX edger models: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165 , WG80175, WG163, WG165, WG80175 Top Quality 10ft / 0.065in Edger Spool Line & Cap: 8 pack of 10ft each of twisted copolymer nylon resin string and synthetic edger, 1 pack of trimmer cap Foldable and flexible allowing the line to stretch and cushion on impact with hard surfaces Aerodynamic shape allows less drag for more efficient cuts If you have any doubts and questions, please do not hesitate to contact us Exceptional features: Foldable and flexible allowing the line to stretch and cushion on impact with hard surfaces. The aerodynamic shape allows less drag for more efficient cuts. Perfect replacement spool for Worx trimmers. Easy to install and saves you from having to buy a new mower.