WA0014 Trimmer Line Replacement Spool Compatible with Worx WG184 WG190 WG191 WG168 automatic feed trimmers. WG184 trimmer line, Grass Trimmer line spool for WORX, Helix design copolymer nylon resin and synthetic trimmer and edger line,aerodynamic shape allows less drag for more efficient cuts. Weed eater replacement spools for Worx WG184 string trimmer line,Length 20 foot trimmer line provides a wider range of mowing area. 0.080 inches diameter wearable line supports fast cutting and longer lifetime. Package include 6 pack WA0014 replacement spool line and 1 pack WA0037 spool cap cover.Good value for money and easy to install. Note: Wear safety goggles and long pants when using this product to avoid injury from spilling lines. Unplug tool before changing, installing, or removing accessories. Only Suitable for tender weed grass. Tough and strong weeds please use blades to trim. Feel free to if you have any problems.