The black and decker line spool conversion kit allows you to convert compatible black and decker resin blade grass trimmers to line spool operation, giving you greater versatility from your existing trimmer. This conversion kit is designed specifically for black and decker grass trimmers that currently use a resin blade cutting system. Rather than replacing the entire tool, this kit provides a cost effective solution for users who prefer nylon line trimming over solid blade cutting. Ideal for lawn edging, trimming around borders, and tackling areas where a line trimmer is more practical than a blade, this kit helps extend the usefulness of your trimmer across a wider range of garden maintenance tasks. Features and benefits bull converts resin blade black and decker grass trimmers to line spool operation bull extends the versatility of your existing trimmer without the need for a replacement tool bull genuine black and decker accessory for assured compatibility with supported models bull suitable for lawn edging and general garden trimming applications