BLACK+DECKER GrassHog Trimmer Spool Spring & Cap is designed to fit BLACK+DECKER GrassHog trimmer Model No. 599062-00. This part is compatible with string trimmer models featuring an automatic feed spool, including CST1000, CST1100, CST1200, CST2000, GH400, GH500, GH600, NST2018, ST7500, ST6600, and ST7000. It corresponds to part numbers RC100, RC100P, RC-100, RC-100-P, 90518636, and 905186-36. The package includes one carded unit, making it easy to replace your worn or damaged spool spring and cap, ensuring your trimmer operates smoothly and efficiently. Model Number: 599062-00