Lower Mulching Blade / Honda 72511-VE2-000Pack Size:1Honda 72511-VG4-K00, Honda 72511-VE2-000, Honda 08720-VE2-000Dealer Choice 50-2981, Home Depot 136418, J. Thomas 91516, J. Thomas HD-5009, NHC 212-0514, Oregon 91-516, Rotary 6431, Sunbelt B1SB6431Honda Harmony and Harmony II; HRM215, HRB215, HRS216 and HRT216; 21" deckLength: 21 ", Center Hole: 13/16 ", Outer Hole: 3/8 ", Center To Center: 3 3/8 ", Width: 2 1/4 ", Honda code 8294373/4010609, Thickness: .120 "