Notched Hi-Lift Blade / Exmark 103-2529-SPack Size:1Exmark 103-2529, Exmark 1-653101, Exmark 653101, Exmark 103-2529-S, Exmark 103-6390, Exmark 103-6400-S, Exmark 103-6390-SDealer Choice 50-4065, J. Thomas BL-369, J. Thomas BL-085, Landscaper Express 2529, Landscaper Express 20-0986, Landscaper Express 36400, Landscaper Express 36390, Landscaper Express 36395, Mow More EX6821, NHC EM1817, Oregon 91-369, Prime Line 7-06482, Rotary 6821, Rotary 11269, Rotary 11243, Rotary 11500, Sunbelt EM1817, Sunbelt B1EM1817Exmark Lazer Z; requires 3 for 44" deckLength: 15 1/4 ", Center Hole: 5/8 ", Width: 2 1/2 ", Thickness: .203 ", Requires 3 for 44" deck, Straight