New aftermarket set of 3 mower deck blades that replaces John Deere AM31100 and M41967. These blades will work on the older style 46" 47" and 48" mower decks that came on the John Deere 120, 140, 300, 314, 316, 317, 318, 322, 332, and others. These blades measure 16" long with an 11/16" center hole. They are 2" wide with a .203" thickness.