Weed Warrior Trimmer Line String .65"x 30 ft Each Spool, Fits Black and Decker You will receive NINE (9) total spools. Total of 270ft of string trimmer line. Fits most Black + Decker electric trimmers models: CST1000/1100/1200/2000, GH400/500/600/610/900/912, LST120/136/220/300/400/420/1018, NST1018/1024/1118/1810/2018/2118, ST7000/7200/7700/7701 -- Compared to: AF-100, AF-100-2, AF-100-BK, AF-150-04, AF-100-3P Biodegrades* 60x faster than a conventional trimmer line in an anaerobic landfill Quick and easy line loads Highly durable Factory wound for maximum reliability Durable And Long Lasting Weed Warrior .065 in. x 30 ft. Biodegradable Trimmer Line Spool provides quick and easy line loads which allows you to maintain your lawn without having to stop frequently for adjustments. The line biodegrades* 60x faster than conventional trimmer line in an anaerobic landfill and is highly durable. Each spool is factory wound for smooth, reliable operation and comes with 30 feet of high performance .065-inch line. Weed Warrior 3-pack Replacement Trimmer Line Spools fit most Black + Decker Electric Trimmer models (listed). Black Decker is a trademark of The Black Decker Corporation, which is not affiliated with Shakespeare Company, LLC. *49.5% biodegradation within 2 years via ASTM D5511 test method in an anaerobic landfill. Anaerobic landfills may not exist in your area. Note that stated rate and extent of degradation do not mean the product will continue to decompose. Trimmer line remnants left in the yard may not experience this same level of biodegradation.