"1Trimmer Spool Line for WorxLine String Trimmer Replacement Spool10ft 0.065"" Replacement Autofeed Edger Spool Compatible with Worx WG180 WG163 WG175 WA0010 & 50006531(10 Pack) Weed Eater String,Weed Wacker Spool Replacement Parts ^ 2The trimmer replacement spool Suitable for Multiple WORX String Trimmer Models: WG150, WG151, WG151.5, WG152, WG153, WG154, WG155, WG155.5, WG156, WG157, WG160, WG160.1, WG160.2, WG163, WG165, WG175, WG180.^ 3 Premium 10ft/0.065 string Trimmer Spool Line and Cap easily cuts through grass and weeds.100-pound of tensil strength compared to old lines that only offer 68-pound of strength,Pliable and flexible allowing for the line to stretch and cushion on impact with hard surfaces,Aerodynamic shape allows less drag for more efficient cuts.^ 4 Package Included: 8x replacement trimmer line spool for Worx trimmer; 2x replacement cap;The Trimmer replacement spool is compatible with Worx string trimmer and utilizes centrifugal force to feed the trimmer line as it is needed. The auto feed system replacement spool eases the tedious work of hand-winding spools."