Medium-Lift Blade / Murray 54390E701MAPack Size:1Murray 54390E701, Murray 54390HT, Murray 454390, Murray 454390MA, Murray 054390E701MA, Murray 20930E701, Murray 20930HT, Murray 25116, Murray 54390E, Murray 54372E, Murray 54372HT, Murray 24116E601, Murray 24116HT, Murray 054390E701Aladdin UMO7, Edgewater 155621, ESF 114-827, Foley/PLP 114-827, Green Meadow UMU218, Laser 91361, NHC MU2605, Oregon 97-105, Prime Line 7-04623, Quality 120835, Rotary 6018, Sunbelt MU-2605, Sunbelt SB-6018, Sunbelt B1MU2605Murray All 36" decks with square D center hole; requires 2 for 36" deckLength: 18 1/4 ", Center Hole: 7/8 ", Outer Hole: 3/8 ", Center To Center: 4 ", Width: 2 1/4 ", Requires 2 for 36" cut, Thickness: .149 "