Oregon Exact Replacement blades are expertly designed to match the dimensions of the Original Manufactured Blade. 2-in-1 Blade: Effectively bags or discharges clippings depending on your mower settings. Bagged clippings eliminate extra clean-up. While Discharging clippings, allows you to work faster, and is ideal for rocky or sandy soils. Blades come pre-sharpened at the optimal angle to deliver continuous clean-cuts and keep your lawn looking healthy. Using a proprietary blend of steel and machine straightening, Oregon blades are not only durable, but perfectly balanced to deliver straight cuts, while resisting nicks and dings. Oregon designs for pros first, meaning our blades live up to all vegetation and are easy to sharpen. All of this is backed by our Lifetime Warranty.