Mowing Blade Length: 20-13/16" Center Hole: 27/32" Center to ... (s): Honda - 2801595 ,Honda - 72511-960-000 ,Honda - 72511-960-004 ,Honda - 72511-VA2-690 ,Honda - 919381 ,Honda - M2100-576-91938 ... , 491-444, 90-651 Description: 20-13/16" Standard Mulcher Blade for 21" cut, walk behind mower fits HR214, 21KS, 21S ...