Lawn Mower Blade Standard Length 18 5/8 in Width 2 1/2 in Thickness 0.203 in For Use With John Deere Mfr.No. Gs25 Gs45 and Gs75 Commercial Walk Behinds 325-455 Series Lawn and Garden Tractors and Z-Trak F620 with 54 in Decks Requires (3) for 54 in Cut Scotts Scotts Lawn and Garden Tractors S2554( 99- 01) and Gt2554( 02) Series Requires (3) for 54 in Cut OEM Replacement For John Deere/m135590