One Set Of 10 New Aftermarket Replacement Fits Hi-Lift Blades Fits Craftsman, Sears: 127843 138971 138498 21546095Fits Poulan, Fits Husqvarna: 532127843 532138498 532138971Fits Stens: 340-278 Fits Hi-Lift BladeRequires 2 for 42″ deckReplaces Numbers:Fits AYP: 127843, 134149, 138498, 138971, 138971X431, 531307224, 532134149, 532138971, 594892701, 917127843, 917131323, 917138498MS, 917532138498Fits Craftsman: 127843, 138498, 138971Fits Husqvarna: 532127843, 532138498, 532138971Fits McCulloch: 532138971Fits Poulan: 531307224, 532138971, PP24004Fits Snapper: 704429Tech Info:Length: 21″Center Hole: 5 pt. starWidth: 2 1/4″Thickness: .149″S/F: Straight