Mulching Blade / Exmark 103-6581-SPack Size:1Exmark 103-6581, Exmark 103-2517, Exmark 1-403148, Exmark 103-6581-S, Exmark 403148, Exmark 103-2507, Exmark 323515, Exmark 520843S, Exmark 1520843, Exmark 1-403086, Exmark 103-6518, Exmark 403059, Exmark 1-323515, Exmark 103-6583, Exmark 103-2527, Exmark 1-403026, Exmark 1-403059, Exmark 103-6738-S, Exmark 103-6583-S, Toro 403148, Toro 103-2517, Toro 103-6581Dealer Choice 50-4220, Landscaper Express 1032507, Landscaper Express 1032527, Landscaper Express 403148, Landscaper Express 20-0730, Landscaper Express 231001, NHC 212-0725, Oregon 91-368, Prime Line 7-044028, Rotary 9988, Rotary 15-9988, Rotary 10718, Rotary 9487, Rotary 10172, Rotary 9967, Sunbelt SB-9988, Sunbelt B1EM1815, Sunbelt B1SB9988Exmark Requires 3 for 48" deckLength: 16 1/4 ", Center Hole: 5/8 ", Width: 2 1/2 ", Thickness: .203 ", Requires 3 for 48" deck