This Black & Decker strimmer cap spool and line is a replacement part for various Black & Decker strimmer models, including GL650, GL660, GL670, GL315, GL655, GL5530, GLC1825N, and GLC1825LB. It is designed to provide a reliable and efficient cutting experience for your garden maintenance tasks. The package includes a spool of line and a replacement cap for easy installation and continued use of your strimmer.