Lawn mower blade for lawn mowers compatible with 21" WIDTH FLAT mower blade Features : Length: 532 mm Centre hole diameter: 21.4 mm Side hole diameter: 10 mm Side hole centre distance: 63.5 mm Code : 22-328 Reference code : 742-0563 742-0721 942-0563 942-0721 MTD Fleurelle Floraself Golf Genius Stinnes White Yardman Gutbrod