MaxPower s 331982S includes (1) Universal Gold Metal Commercial Mulching Blade 22 cut a cover washer and 6 reducing washers in the following sizes: 3/8 7/16 9/16 1/2 5/8 and 13/16 . The blade measures 22 long by 2-1/4 wide with a 1 point center hole. Commercial mulching blades feature greater cutting surface for increased mulching performance sharpened cutting teeth for a cleaner finer cut and a centrifugal air lift design for uniform chopping distribution. MaxPower blades are proudly manufactured in the USA to meet or exceed OEM specifications.