Set of 3, 18 inch lawn mower blades. It fits Bobcat, Lesco, Exmark , Scag, Kees, John Deere, Ferris, Husqvarna, Grazer, Simplicity, Turf, Bunton, Encore and Jacobsen Zero Turn lawn mowers 5/8 inch hole. OREGON PART #'s 90-418, 491-622, 91-622, 91-633, 91-637, 91-218, 91-256, 91-312, 92-021, 93-006, 94-053, 94-064, 94-065, 96-395, 396-726, 493-006, 596-344, 91-064, 91-170, 91-181, 91-184, 91-270, 91-335, 91-623, 93-003, 95-063, 96-344, 99-128
