Wide Compatibility: Black + Decker Models: 82300, 82310, 82312, CST500, CST800, GE600, GE800, GL250, GL310, GL360, GLC500, ST200, ST300, ST400, ST1000, ST3000, ST4000, ST4050, ST4400, ST5000, ST5000, ST5000 ST6500, ST6800, ST7600Save money and time: Streamlined shape allows less drag for more efficient cuts. With the auto-feed system, the replacement spool makes the tedious job of manually winding spools by hand.Premium Quality: Made of flexible and flexible braided synthetic copolymer nylon resin that allows the line to s stretch and absorb impact with surfacesHealthier and greener - It's good for your lawn. It is superior to the standard round line in producing an improved cutting action, which helps keep the lawn healthier and greener.Package includes: 6 piece cutting line. Non-original replacement part.