This is a A-B1HS1011 BLADE-MOWER, XHT, 22-1/2", 5/8" PN: B1HS1011Main Description As Following : A-B1HS1011 BLADE-MOWER, XHT, 22-1/2", 5/8" P.N: B1HS1011 Replacement XHT Lawnmower blade. XHT(Xtreme Hardness & Toughness) blades are 25-40% harder than standard lawnmower blades. Benefits of the HXT blade are sharper and longer lasting cutting edges. More resistance to bending. Tighter tolerances in the aftermarket vs. OEM. XHT blades also offer greater impact toughness.(3) blades for 66" cut. Fits Z, Super Z side discharge deck.Center Hole: 22-1/2"Length: 22-1/2"Thickness: .197Type: Medium LiftWidth: 3" Crossed From: EXL11721 MOW MORE , HU-687 J. THOMAS , HU687 J. THOMAS , M96601 SHOUP , 11721 ROTARY , 350-687 STENS , 350-689 STENS , 350687 STENS , 350689 STENS , 50-3341 WINDSOR , 503341 WINDSOR , 798496 EXCEL , 798496 HUSTLER , 798496X HUSTLER , 798512 HUSTLER , 798512X HUSTLER , 798512Y HUSTLER , 92-045 OREGON , 92045 OREGON Found in Section & Models : Tractor Parts Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada