Oregon Gator Mulcher 3-N-1 Lawn Mower Blade For Cub Cadet 15-1/8-Inch 90-957 90-657 Replaces OEM No. 742-04124, 759-3812 Blade length (measured diagonally): 15.3-inch Blade width 2.5-inch Blade center hole diameter 0.76-inch Width: 2.50in. And Thickness: .203in.