This is a A-B1GH1902 BLADE-MOWER, 21", 1/2", HD PN: B1GH1902Main Description As Following : A-B1GH1902 BLADE-MOWER, 21", 1/2", HD P.N: B1GH1902 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 61" cut.C to C: N/ACenter Hole: 1/2"Hole Diameter: .50"Length: 21"Outer Hole Diameter: N/AOverall Length: 21"Replaces: 320243Thickness: .250/6.35mmType: Medium LiftWidth: 2-1/2" Replaces: 320242 MISCELLANEOUS , Crossed From: A MOW MORE , GH21 MOW MORE , GH21A MOW MORE , GH6401 MOW MORE , GR-3382 J. THOMAS , GR3382 J. THOMAS , H-1667 COUNTRY CLIPPER , H1667 COUNTRY CLIPPER , H1708 COUNTRY CLIPPER , H2122 COUNTRY CLIPPER , H2203 COUNTRY CLIPPER , H2500 COUNTRY CLIPPER , M96712 SHOUP , SN21A MOW MORE , SN21B MOW MORE , WO21B MOW MORE , 050124 LESCO , 1696323YP SNAPPER , 1696323YP YAZOO/ KEES Found in Section & Models : Sunbelt - Blades > Blades, Grasshopper (UNDEFINED): SEVERAL (61"), Snapper (UNDEFINED): SEVERAL (61"), Woods (UNDEFINED): SEVERAL (61") Associated Items : New Also This is An Aftermarket Product And : High Quality Afternaket Shipped from Both US and Canada