Six (6) Pack Rotary Mower Blades Replace Grasshopper 320245 And 320243 Requires (3) Blades For 61" Deck Rotary replacement blade fits Grasshopper. 320243 320245(B) 3 Blades Required for a 61" Deck Quantity: Pack Rotary Mower Blades manufactures high-quality, OEM replacement lawn mower blades