General description Replacement spool cap covers designed for BLACK+DECKER string trimmers, ensuring optimal performance and protection for your trimmer line. This pack includes four spool caps and four springs, providing a convenient solution for maintaining your trimmer. Technical specifications Compatible with BLACK+DECKER String Trimmer Models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST420, LST136 Includes: 4 spool cap covers and 4 springs Usage These spool cap covers are designed to protect the trimmer line and hold the spool securely in place, ensuring efficient operation of your BLACK+DECKER string trimmer.