This convenient cordless combo kit bundles a 20 V max Axial Leaf Blower plus String Trimmer/Edger. The cordless string trimmer features an automatic line feed - no bumping required. And after you trim and edge, the cordless leaf blower gets up to 320 cfm and 90 mph to clear clippings and debris in no time. Black+Decker® Replacement Spool, Autofeed, For Use With: Black+Decker® GH400/GH500/GH600/GH610/GH900/GH912/ST6600/ST7000/ST7700/CST1000/CST1200/CST2000/MTC220/MTE912/NST2018/NST1118/NST2118/LST220/LST300/LST400/LST420/LST136 Multiple String Trimmers, Specifications: 0.065 Inline, 7.75 in L x 4.88 in W x 1.19 in H Dimensions