Pro Parts Place is a brand that specializes in providing replacement parts for lawn and agricultural equipment Our brand emphasizes providing a one-stop solution for finding the parts needed to keep equipment running efficiently. They aim to be a reliable resource for finding all the necessary parts, streamlining the process of maintaining and repairing equipment. XHT BLADES Extreme Hardness Toughness MADE IN THE USA! Don't be fooled by other cheap imported blades you see on eBay! Buy from home! Increased hardness (between 48-52 on the Rockwell Hardness Scale), without brittleness Greater yield strength—the strongest mower blades on the market Better impact toughness (ANSI-S483 compliant) Increased resistance to bending Higher wear resistance Reduced weight Faster start/stop Less wear on PTO clutch break Lower fuel consumption Last longer and need to be sharpened less frequently Our patented MARBAIN material is a durable, cost-effective alternative to abrasion resistant steel and other manufacturing materials****************** This sale is for 3 replacement XHT blades. Replaces the following OEM part numbers: JOHN DEERE GX21784JOHN DEERE GX21785JOHN DEERE GX21786JOHN DEERE GY20852JOHN DEERE 3 BLADES FOR 48" CUT Center Hole: 7 LOBE Width: 2-1/2" Length: 17" FOLLOWING MODELS WITH 48" CUTTING DECKS E140 E150 E160 E170