This blade has an S SHAPE CENTER HOLE. It is 18.611" long (2IN1). Fits only very NEW mowers: XT1-GT 54 KH FAB Model 14AQA3CM010 - Cub Cadet 54" XT1 Enduro Garden Tractor, Fab Deck, (2021) Craftsman 54" Zero-Turn Mower Z 5800 (CMXGNAM211704), 2021 and 2022), Model 17ARFACW093. Takes 3 blades for a 54" cut. Check your manual to be sure this blade will fit your mower.
