John Deere M119799 44 in. Mower Blades, Set of 3 are designed for 300, GT, GX, and LX Series lawn tractors equipped with a 44M Deck, also known as a Piranha Deck. These John Deere blades are crafted using a blend of carbon and boron, which ensures a durable, long-lasting sharp edge that resists breakage. This set includes three blades, making it a for maintaining optimal cutting performance. Compatible with various models featuring 44M decks such as 325, 335, 345, 355D, GT225, GT235, GT242, GT245, GT262, GT275, GX255, GX325, GX335, GX345, GX355, LX172, LX173, LX176, LX178, LX186, LX188, LX255, LX266, LX277, LX279, LX288, and LX289, these blades help keep your lawn mower running efficiently. For assistance in finding the right part, John Deere specialists are available Monday through Friday from 8:00 AM to 5:00 PM EST. Model Number: M119799