MTD 942-0742A Replacement Lawnmower Blade for 22-Inch Cut with 6 Point Star Hole MTD original equipment part 90-day warranty for defects in material or workmanship Length: 22-inch, Width: 2-1/4-inch Center hole diameter: 6 point star, Thickness: .125-inch, Diameter of Outside Holes: 5/16-inch, Center to Center (outside holes): 2-1/2-inch Replaces Part Number 742-0742, 742-0742A and 942-0742