Hi-Lift Blade / Exmark 103-6384Pack Size:1Exmark 103-6384J. Thomas 355420, Oregon 92-057, Rotary 11498Exmark Lazer AS, AC, LC, XP, XS, and Next Lazer Z ASX; Requires 3 for 72" deckLength: 24 1/2 ", Center Hole: 15/16 ", Width: 3 ", Thickness: .203 "