John Deere M113517 Mulching Mower Blades, Set of 3 are designed specifically for TriCycling Mulching Kit equipped mowers with 48" decks. These blades are manufactured using a combination of carbon and boron, providing exceptional hardness that ensures a long life and a sharp edge without breakage. Each blade undergoes extensive testing by John Deere to superior wear resistance and longevity. This set includes three John Deere Equipment Manufacturer (OEM) blades, ensuring quality and compatibility. For assistance in finding the right John Deere part or accessory, specialists are available Monday through Friday from 8:00 AM to 5:00 PM (EST) by phone or email. Hartville Hardware strives to provide accurate part recommendations based on reliable sources, but compatibility may change without notice, so contacting customer support is advised if unsure. Model Number: M113517