【Compatible With Worx Weed Eater String Trimmer】:The 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. | 【Efficient Cutting】: 0.065-Inch weedeater line use centrifugal force and aerodynamics to reduce drag easily cuts through grass and weeds.Each replacement spool comes pre-wound and may be replaced easily in a few seconds. | 【Abrasion Resistant】: The trimmer line is made of upgraded nylon polyamide material that has a tensile strength of over 100 lbs and is 30% more durable than other brands for longer life and flexible. | 【More Durable】: The spools are made of the latest materials to withstand the high speeds of the weed wacker,resulting in higher durability.The flexible trimmer spool allows line to stretch and cushion on hard surfaces, increasing cutting efficiency by 50% for more effective weed trimming. | 【Package Included】:Our great value pack contains 12 pack WA0010 replacement spools 0.065"10ft/pack for worx string trimmer,2 pack WA6531 spool cap covers. The trimmer line is compatible with original spools models WA0010 and cap covers models WA6531 GT. | 【After Service】: If you have any questions about our String Trimmer Spool Line, please feel free to contact us. We will do our best to make sure every customer is happy and satisfied with our product and service.