Spool Cap protects the spool line and keeps it in place on your trimmer.
No tools are required to install it,Simply snap it on over the spool.
Spool Cap Cover replaces for Worx 50006531 & WA6531
Fits models:WG150; WG151; WG152; WG155; WG160; WG165; WG166; WG167; WG175 cordless trimmers