First off, the Ninja is, in my opinion, the best blender on the market. We've had a few in a row and they last several years with heavy use. They also blend everything really smoothly.Recently, I dropped the base of mine into a sink full of water, fully submerging it. Needless to say, it didn't work, after that. I was so upset because I didn't want to have to buy a whole new blender with all the parts, since this brand isn't cheap. I started looking on Amazon to see if the base was available on it's own and I was SO happy to find this one for such a low price. It came in perfect condition and works perfectly! If your base stops working, this is the way to go!