☑[Compatible models]: Compatible with Black and Decker string trimmer: CST500, CST800, GE600, ST200, ST300, ST1000, ST3000, ST400, ST4000, ST4400, ST4050, ST4500, ST5000, ST6500, ST6800.
☑[Spool model]: Spool model: RS-136 / RS-136-BKP / 143684-01. Cap model: 682378-02
☑[Length]: 20ft .065-inch replacement spool for Black and Decker auto feed string trimmers.
☑[High Quality]: Spool made of durable ABS material, spring made of stainless, wearable line supports fast cutting and a longer lifetime.
☑[Package Included]: 6 replacement trimmer line spool for BLACK+DCKER trimmer, 1 replacement cap,1 replacement spool spring.