John Deere M141786 Standard Mower Blades, Set of 3 are crafted with a combination of carbon and boron to ensure exceptional hardness, providing a long-lasting sharp edge without breakage. This set includes three John Deere Equipment Manufacturer (OEM) blades designed to maintain optimal cutting performance for your lawn mower. For assistance in finding the right John Deere part or accessory, John Deere specialists are available Monday through Friday from 8:00 AM to 5:00 PM (EST) by calling 1-800-345-2396 or via email. Hartville Hardware strives to provide accurate parts recommendations based on reliable sources, but compatibility can change without notice, so contacting customer support is advised if you are unsure about the part you need. Model Number: M141786