Set of 3 Stens 302-008 strait blade commercial mulched blades. It would appear that this model has been discontinued, but it would appear they were intended to fit Toro or Exmark commercial mowers. They are 22" in length and have a 3/8" hole in the center. They are a bit grimy from being old stock, but they are new. I have another set of these that are labeled with same part number, but have a 3/4" hole in center. I am not sure why they are different.