You are purchasing two blades compatible with MTD 42″ decks —Blade Specifications— Length: 21-3/16″ Width: 2-1/4″ Center Hole: 6 Point Star Thickness: .187″ Made in USA —Fits Models— 13AJ775S000, 13AN772S000, 13AX771S004, 13AX771S004, 13AX795S004, 17AFSACS004 —Replaces— 742-04308, 742-04312, 942-04308, 942-04312, 94204308A, 94204312A Please double check model, serial and part numbers to verify fitment prior to purchase. Thanks! Brand: Mower Parts Group Condition: New