Oregon Gator Mulcher 3-N-1 Blade For 38-Inch AYP/Husqvarna/Poulan Pro/Sears/Craftsman Lawn Mowers 95-610 Replaces OEM No. 121263X, 123431X, 143978X, 532121263, and 532143978 Order 2 for a 38-Inch Cut Blade Length (Measured Diagonally): 19-9/32in. Center Hole Diameter: 3/8in. Width: 2.25in. And Thickness: .187in.