Upper Mulching Blade / Honda 72531-VE2-020Pack Size:1Honda 72531-VE2-020, Honda 72531-VE2-010, Honda 72531-VE2-000, Honda 08720-VE2-000Dealer Choice 50-2886, Home Depot 136418, J. Thomas 91-517, J. Thomas 91517, J. Thomas HD-5013, NHC 212-0634, Oregon 91-517, Rotary 6430Honda Harmony and Harmony II; HRM215, HRB215, HRS216 and HRT216; 21" deckLength: 21 ", Center Hole: 1 1/4 ", Outer Hole: 13/32 ", Center To Center: 3 7/16 ", Width: 2 3/4 ", Honda code 6672372/5342886, Thickness: .120 "