Toothed Blade / John Deere TCU15881Pack Size:1John Deere TCU15881Oregon 396-730John Deere Z520A, Z820A, Z840A, Z830A, Z850A, Z860A, Z920A, Z930A, Z950A, Z960A and Z925A; requires 3 for 60" 7-Iron deckLength: 21 ", Center Hole: 7/8 ", Width: 3 ", Thickness: .250 ", Heavy-duty