Toro 88524 3-Pack Replacement Spools Trimmers, 20/24-volt, 12-Inch
These spools are of 0.065 in. single line and have an auto-feed head. The spool is pre-wound and requires no tools for installation. Just snap it into place on Toro trimmer models 51484, 51486 and 51487. These spools are sold in a 3-pack for bulk purchase to save you time and money.