Check the listing for details. 20Pack WORX WA0010 Replacement Spool Line For Grass Trimmer Edger 10ft Cap Cover. Condition: New. Listed at 6.77 USD. Feature: This Replacement Grass Trimmer Line Spool Set Is Designed For Worx. With The Auto Feed System, The Replacement Spool Eases The Tedious Work Of Hand-Winding Spools. The Spool Compatible With Worx Utilizes Centrifugal Force To Feed The Trimmer Line As It Is Needed. High-Quality 10ft/ 3.1m Edger Line String Easily Cuts Through Grass And Weeds. Strong Toughness, Not Easy To Break, Necessary For Garden Mowing. Use Tips: Always Wear Eye Protection. Unplug Tool Before Changing, Installing, Or Removing Accessories. Choking Hazard, Small Parts Keep Away Children Under 3 Years. Only Suitable For Tender Weed Grass. Tough And Strong Weeds Please Use Blades To Trim. Does Not Fit Any Other Brand Of String Trimmers. Specification: Type: Trimmer Spool For Model:Wa0010.