Lawn Mower Blade, Standard, Length 18 5/8 in, Width 2 1/2 in, Thickness 0.203 in, For Use With John Deere GS25, GS45 and GS75 Commercial Walk Behinds; 325-455 Series Lawn and Garden Tractors; Z-Trak F620; 4100 Compact Utility Tractors with 54 in Decks…