MowerPartsGroup (3) Wavy Mulching Blades Fits Bad Boy 48" MZ, MZ Magnum Replaces 038-4825-00 (3) 48" Replacement Bad Boy Mulching Blades for MZ & MZ Magnum 48" Cut Replaces Bad Boy: 038-4825-00 Blade Length: 16 1/2"; Width: 2 1/2"; Center Hole: 5/8" ; Thickness: .203" Fits Bad Boy 48" MZ & MZ Magnum ; Requires 3 blades for 48" cut Please ask if you are unsure if these parts will work for your unit