This 50 m 3 mm Round Steel Wire Coated Nylon Trimmer Line attachment for nylon trimmers, tap and go, and other similar tools. The Brush Cutters Trimmer Head uses this trimmer line to effectively cuts through thick grass and weeds and completes the trimmer. By connecting it to a tap and go or trimmer head and then attaching the complete attachment with a brush cutter, this can be used to cut or remove unwanted weeds.