How can I restring a Ryobi Expand-It weed eater?

To restring a Ryobi Expand-It weed eater, first remove the spool from the trimmer head. Cut a length of new trimmer line, thread it through the eyelet holes on the spool, and wind it evenly in the direction indicated on the spool. Reattach the spool to the trimmer head and trim any excess line.