Replacement Spool Line and Cap RC-100-P with Spring for Black & Decker 30-feet replacement line is factory wound for a superior feed Each spool contains 30 feet of 0.065 inch diameter line Utilizes centrifugal force to feed the trimmer line as needed Eliminates time spent hand-winding string trimmers Compatible with most Black & Decker single line automatic feed trimmers and edgers Specification: Material: Nylon Color: Black (as shown in pictures) Line length: 30 ft (approx.) Diameter: 0.065 inch (approx.) Fits multiple string trimmer models: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST400, LST420, LST136 Package included: 1 x Spool Line 1 x Replacement Cap 1 x Replacement Spool Spring Note: Please allow 1-4 cm difference due to manual measurement. Due to light and screen differences, the item's color may be slightly different from the pictures.