Set of 3 replacement Heavy Duty high lift blades for Exmark 50" cut mowers with Triton Decks, by Rotary Corp. These blades measure 17-1/2" in length, 3" wide and 0.204" thick with a 5/8" center hole. These blades are for the older versions of the Triton Decks that used the small 5/8" arbor (center hole) size Replaces: EXMARK: 103-9605 / 103-9605-S Dimensions and Specifications LENGTH- 17-1/2" C. H. DIA- 15/16" WIDTH- 3" THICKNESS- 0.2040" Note: The mowers listed for fitment, have used both 5/8'' round and 15/16'' round Arbors, Please check your arbor size before purchasing these blades. These blades will not fit mowers with 15/16'' arbors.