Features:* AF-100 Interchangeable Spool Line & Cap RC-100-P with Spring for Black & Decker* Suitable for most brands of Black and Decker single head automatic feeding trimmers and edgers* 30 feet to get the line is factory wounded, as well as space and feed* Each spool contains a 30 foot 0.065 inch diameter line* Adopts centrifugal force to feed the trimmer line as needed* Avoids time spent manually winding string trimmersSpecifications:* Material: Nylon* Color: Black (As Pictures Show)* Line Length: 30ft (Approx.) * Diameter: 0.065 inch (Approx.) * Fit for many models of string trimmer: GH400, GH500, GH600, GH610, GH900, GH912, ST6600, ST7000, ST7700, CST1000, CST1200, CST2000, MTC220, MTE912, NST2018, NST1118, NST2118, LST220, LST300, LST400, LST420, LST136Package Contents:1 * Line Spool1 * Cap Replacement1 * Reel Spring ReplacementNote:The actual colors of the item may be slightly different from pictures shown on the website due to many factors such as monitor brightness and light brightness.