Hi-Lift Blade / John Deere GY20852Pack Size:1John Deere GY20852, John Deere GX21784, John Deere AM141035Dealer Choice 50-2081, Home Depot 469450, J. Thomas BL-0012, Lowe's 228461, NHC 212-0457, NHC JD6017, Outdoor Factory Parts 578431908, Oregon 92-104, Oregon 92-616, Rotary 11595, Sunbelt B1PD5017, Sunbelt B1JD6017John Deere D140, D150, D160, LA130, LA140, LA145, LA165, X140, 145 and 155C riders; requires 3 for 48" deckLength: 17 ", Center Hole: 7 pt. star, Width: 2 3/4 ", Thickness: .164 "