HIGH LIFT BLADE FITS EXMARK 103-6403-SSPECIFICATIONS: LENGTH 20 1/2" CENTER HOLE 15/16" WIDTH 2 1/2"FITS:EXMARK LAZER Z, SERIAL NO. 540,000 AND HIGHER AND ULTRA CUT; REQUIRES 3 FOR 60" DECK REPLACES OEM: 103-6383, 103-6383-S, 103-6393, 103-6393-S, 103-6398, 103-6403, 103-6403-SREPLACES AFTERMARKET:355-287, 11224, 11248, 212-0100, 504-00066, 92-031, B1EM1880, B1EM1892, B1SB11242, B1SB11248, B1SB11249, B1SB11469Warning:Lead-Nickel-Cancer and Reproductive Harm