Sunbelt Mulching Blade (Set of 7) - B1JD1050,7 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. (7) blades for 1600, 1600 Turbo, 1600 Turbo Series II and 1620 wide area mower. Center Hole 29/32" Length 21-29/32" Thickness .250 Width 2-1/2" Replaces: M144935 JOHN DEERE TCU51118 JOHN DEERE Crossed From: M144935 JOHN DEERE 91-488 OREGON 91488 OREGON Fits the following 62" deck: John Deere RIDING MOWER: 1420 (62") John Deere RIDING MOWER: 1435 (62") John Deere RIDING MOWER: 1445 (62") John Deere RIDING MOWER: 1545 (62") John Deere RIDING MOWER: 1550 (62") John Deere RIDING MOWER: 1565 (62") John Deere RIDING MOWER: 1570 (62") John Deere RIDING MOWER: 1575 (62") John Deere RIDING MOWER: 1580 (62") A physical address must be provided NO PO BOXES. Thanks for looking!