A great deal on a set of 3 replacement mower blades guaranteed to fit John Deere 60" mowers when equipped on John Deere models 420, 430, 445 and 455 garden tractors; 755 and 855 compacts and 261 rear grooming mowers. Just be sure your mower deck is a 60" as these models could have been equipped with different size mower decks. These blades are identical replacements for John Deere part numbers M141785, AM100538, M112847 and M87622. These brand new blades are made by Oregon. The blades are 20 1/2″ long, with a 7/8 round hole in the center. Thanks for looking and please check out my feedback and other auctions