Set of 6, Heavy Duty Made In USA Commercial Mulching Blade to Replace Cub Cadet 742-04053, 742-04053A, 942-04053, 942-04053A. Made in USA Price is for 6 quality "Made in USA" Rotary blades. (2 Sets of 3 For 50" Decks) Blades Will mulch much better than OEM style blades. Has thicker steel (.187") for longer blade life. 17.9" long, 2-1/2" wide, Special design mounting hole for 6 point star spindles. (see photo 2)