Oregon 96-350 Lawn Mower Mulching Blade, Gator G3, 21-1/4, Fits Cub Cadet, Replaces MTD Center hole: 3/4" Aggressive blade angle increases air flow to push debris up and out for superior bagging or side discharge Gator Mulcher provides cleaner, more efficient cutting performance can eliminate the need to bag, saving time and hassle. Replaces major brands: Cub Cadet and MTD