John Deere UC22010 Mower Blades, Set of 3 are designed to deliver lasting performance and a sharp cut for your lawn mower. These mower blades are crafted from a durable combination of carbon and boron, ensuring hardness that extends the blade life while maintaining a sharp edge without breaking. This set includes three blades and serves as a substitute for the M143520 model, making it a reliable choice for maintaining your lawn mower’s efficiency. As a John Deere Equipment Manufacturer (OEM) part, these blades quality and compatibility. For assistance in finding the right John Deere part or accessory, customer support is available Monday through Friday from 8:00 AM to 5:00 PM (EST) via phone or email. Hartville Hardware strives to provide accurate parts information sourced from reliable systems, but compatibility may change without notice, so contacting customer support is if you are unsure about the part needed. Model Number: UC22010