Hi-Lift Blade / Hustler 783977Pack Size:1Hustler 783977Dealer Choice 50-3406, J. Thomas HU-2132, Landscaper Express 783977, NHC 212-0229, Oregon 90-209, Rotary 10797, Rotary 15-10797, Sunbelt EL-1390, Sunbelt B1SB10797Hustler Super Z; requires 3 for 72" deckLength: 24 ", Center Hole: 5/8 ", Width: 3 ", Thickness: .250 ", Heavy-duty