Oregon Gator Mulcher 3-N-1 Lawn Mower Blade For Toro 18-Inch Heavy Duty 94-718 96-718 Replaces OEM No.92-7961, 27-0990, 56-2390 Blade length (measured diagonally): 18-inch Blade width 2.5-inch Blade center hole diameter 0.51-inch Toro 52-inch (3) and 36-inch (2) walk behind mower