Medium-Lift Blade / AYP 25321Pack Size:1AYP 25321, AYP 25321R, AYP 9480R, AYP 9484H, Craftsman 25321, Craftsman 25321R, Craftsman 9480RAladdin US5, Edgewater 156605, ESF 114-864, Foley/Belsaw 5978624, Foley/PLP 114-864, Green Line 151020, Green Meadow USSE10, Laser L1807, Laser 91253, NHC EP1000, Oregon 95-010, Prime Line 7-04523, Quality 120880, Rotary 1020, Sunbelt EP-1000, Sunbelt SB-1020, Sunbelt B1EP1000Craftsman Requires 3 for 42" deckLength: 14 5/8 ", Center Hole: 1 1/4 ", Outer Hole: 7/16 ", Center To Center: 3 ", Width: 2 1/2 ", Requires 3 for 42" deck, Thickness: .187 "