A&I XHT 13-7/8", 3/4" Mower Blade (Set of 3) - B1TR3108,3 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 42" cut. Side discharge. Center Hole 3/4" Length 13-7/8" Thickness .187 Type Medium Lift Width 2" Crossed From: 106077 TORO / WHEEL HORSE 106077-03 TORO / WHEEL HORSE 10607703TORO / WHEEL HORSE 106636 TORO / WHEEL HORSE 11-7192 TORO / WHEEL HORSE 117192 TORO / WHEEL HORSE 2000 ROTARY 350-116 STENS 350-995 STENS 350116 STENS 350995STENS 50-1535 WINDSOR 501535 WINDSOR 7-04533 PRIME LINE 704533 PRIME LINE 91-805 OREGON 91246 LASER SALES 91805 OREGON This is an aftermarket product, not an OEM. A physical address must be provided, NO P.O. BOXES. Thanks for looking!