John Deere M143504 Standard Mower Blades, Set of 3 are crafted from a combination of carbon and boron to deliver exceptional hardness, ensuring a long-lasting sharp edge without breakage. This set includes three John Deere Equipment Manufacturer (OEM) blades, designed to maintain the performance and reliability you expect from John Deere products. Whether you need s or upgrades for your lawn mower, these blades provide durability and precision cutting to keep your lawn looking its . For assistance in finding the right John Deere part or accessory, customer support is available Monday through Friday, 8:00 AM to 5:00 PM (EST). Model Number: M143504