Notched Air-Lift Blade / Exmark 103-6401-SPack Size:1Exmark 103-6401, Exmark 103-6401-S, Exmark 103-6396, Exmark 103-8251, Exmark 103-8370, Exmark 103-8296, Exmark 103-9614, Exmark 109-6460, Exmark 103-6381, Exmark 103-6391, Exmark 103-8251-S, Exmark 103-6460-S, Exmark 103-8370-S, Exmark 103-8296-S, Exmark 103-9614-S, Exmark 109-9390-S, Exmark 116-5496-SDealer Choice 50-1937, J. Thomas EX-16, J. Thomas BL-026, Landscaper Express 38251, Landscaper Express 38370, Landscaper Express 38296, Landscaper Express 39614, Landscaper Express 1096460, Landscaper Express 392205, Landscaper Express 36381, Landscaper Express 1036391, Landscaper Express 36401, Landscaper Express 1036396, Landscaper Express 36396, NHC 212-0591, Oregon 92-029, Rotary 11231, Rotary 15-1231, Rotary 11769, Rotary 11771, Rotary 11772, Rotary 11240, Rotary 11279, Rotary 11770, Sunbelt B1SB11231Exmark Metro, Turf Tracer and Vantage (510,000 and higher); requires 3 for 48" deckLength: 16 1/4 ", Center Hole: 15/16 ", Width: 2 1/2 ", Thickness: .203 "