This is a High lift blade for Grasshopper commercial lawnmowers. For mowers with a 44" mowing deck order (3) blades. Grasshopper lawnmowers with 48" deck requires (1) GH15HL & (2) GH18HL blades for the 48" deck. All blades are sold individually. Be sure to match the part number from the owners manual for the part you are replacing with the OEM number listed below.