Arnold 52-Inch Side Discharge Lawn Mower and Tractor Blade Set Fits Bad Boy, Encore, Ferris, Gravely, Great Dane, HUstler, Lesco, Scag, Snapper, Wright Contains 3 blades 18" X 5/8" round center hole Fits Models: 038300000, 363291, 151227, 5021227, 501756, 0450300, D18037, 601123, 3404, 91-622, 91-633, 510756, 7144001, 48108, 300-910, 310-011, 481707, 482462, 482878