This is an authentic Shimano replacement part that is sourced from the original manufacturer for use with spinning reels. The metal line roller connects to the bail arm and is used to guide the line as it revolves around the spool when reeling in line. This item is available as an individual replacement part.
The bail spring goes next to the bail spring guide A support. This item is made out of metal and is sold individually. This authentic item is supplied directly from the original equipment manufacturer for use with Shimano reels. During replacement, it may require a screwdriver to help install this part correctly. Over time this part may bend or break and will need to be replaced.