Set of 3, Made In USA Heavy Duty Replacement Mulching Blades For John Deere M127500, M127673, or M145476 Price is for a set of 3 quality "Made in USA" Rotary blades. Blades Will mulch much better than OEM style blades. Has thicker steel (.204") for longer blade life. 17" long, 2-1/2" wide, .80" mounting hole.