Replacement Spool For Black+decker Af-100 Grass Trimmer Auto Feed Replacement (6/8 Spools, 2 Hood, 2 Spring) (8pcs) You Will Get: You Can Choose 6 Packs Of Trimmer Spool Wires And 2 Trimmer Caps, And 2 Springs Or 8 Packs Of Trimmer Spool Wires And 2 Trimmer Caps, And 2 Springs.Suitable For Multiple Models Of Line Cutter: Gh400 Gh500 Gh600 Gh610 Gh900 Gh912 St6600 St7000, St7700 Cst1000 Cst1200 Cst2000 Mtc220 Mte912 Nst2018 Nst1118 Nst2118 Lst220 Lst300 Lst400 Lst420 Lst136 Durable Nylon Line. This Type Of Material Can Reduce Drag And Achieve Fast Cutting.Easy To Use: The Replacement Spool Of The Automatic Feeding System Helps To Ease The Tedious Work Of Manual Spools.Service And Warranty: Please Do Not Not Worry About The Quality Of The Product, Please Feel Free To Contact Us If You Have Any Problems. We Promise We Can Solve Your Problem And Make You 100% Satisfied.