Hi-Lift Blade / MTD 942-0623Pack Size:1MTD 942-0623, MTD 742-0623, MTD 742-0738Dealer Choice 50-3955, Green Meadow 98-064, Laser 91615, NHC 212-0758, NHC MA2432, Oregon 98-064-1, Oregon 98-064, Prime Line 7-06713, Rotary 1034MTD 1998 and newer deep decks; requires 3 for 50" deckLength: 17 1/4 ", Center Hole: 6 pt. star, Outer Hole: 5/16 ", Center To Center: 2 1/2 ", Width: 2 1/2 ", Requires 3 for 50" cut, Specially designed center hole to replace six point star, Thickness: .187 "