Three (3) Pack Rotary Mower Blades Replace AYP 187254, 187255, 532 18 72-55 Requires (3) Blades For 54" Deck Rotary replacement blade fits AYP Husqvarna. 187254 187255 187256 532187256 532187256 3 Blades Required for a 54" Deck Quantity: Pack Rotary Mower Blades manufactures high-quality, OEM replacement lawn mower blades