Arnold 490-100-0081 

21" Mower Blade 3-in-1 Mulch - Bag - Side Discharge

Universal; Fits most Bolens / Crafstman / Huskee / Husqvarna / Lawn-Boy / MTD / Murray / Poulan / Snapper / Toro / Troy-Bilt / Weed Eater / Yard Machines / Yard-Man & Others