Hi-Lift Blade / AYP 138971Pack Size:1Ariens 21546095, AYP 138971, AYP 127843, Craftsman 138498, Craftsman 138971, Husqvarna 532 13 84-98, Viking 6109-004-2012Foley/PLP 114-306, Outdoor Factory Parts 578431914, Ratio Parts 30-306, Rotary 6125, Sunbelt SB-6125, Sunbelt SB-6262AYP Requires 2 for 42" deck; Husqvarna YTH1542XP, YTH1542XPG, LTH1342 and LTH1342A; requires 2 for 42" deckLength: 21 ", Center Hole: 5 pt. star, Width: 2 1/4 ", Thickness: .187 "