331035S Size: 19" Features: -Blade replacement.-Fits most AYP, MTD, murray, sears, snapper, and other mowers.-Carded.-9 lbs.-Made in USA. Options: -Available in 18", 19", 20", 21" and 22" sizes. Specifications: -All blades have 1" center hole with a cover washer and 6 reducing washers in 0.38", 0.44", 0.5", 0.56", 0.63", and 0.81".