John Deere Replacement Tractor Blade, For Use With Later Models That Have 42" Decks, Set Consists Of Two 21-3/8" Blades, 11/16" Round Center Hole, 2-1/2" Width, Fits John Deere Model#s L100, L111 & L118, Replaces John Deere Blade# GX20249, GX20819.