Set of 3 replacement high lift blades for Exmark 36" and 52" cut mowers with a 5/8" Center Hole, 2 for 36" cut; 3 for 52" cut! Replaces: EXMARK: 103-1578-S, 1031578 Dimensions and Specifications LENGTH- 18" C. H. DIA- 5/8" WIDTH-2-1/2" THICKNESS- 0.2040" We sell replacement blades, belts, wheels and more for most brands of finish mowers. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. Part Number: 103-1578 / 103-1578-S We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.