Hi-Lift Blade / Snapper 1731898BZYPPack Size:1Snapper 1731898A, Snapper 1731898BZ, Snapper 1731899BZYPRotary 12852Simplicity Axion zero turn rider with 42" decks; Snapper LT200 series and zero turn 150Z with 42" decksCenter Hole: 15/16 ", Length: 21 1/8 ", Requires 2 for 42" cut, Thickness: .160 ", Width: 2 1/4 "