Product is good overall. However, if you are replacing the blade with the original Vitamix blade, the shaft is too big and you will have to file the original blade to make it fit. The removal tool that is included works really well. Much better then using my Channel Locks.It shows a lot of wearArrived quickly, ready to replace the old blade and works great!It fit perfectly to my 32oz, but the edges are not sharp enough. It is really far to work as the original one… making a shake always left pieces of fruit no matter how long you blend it.As a replacement blade assembly for my 12 year old 32oz container, this blade was a good price and shipped and delivered quickly. It fit in my 32oz container....but with no sharp edges, it just doesn't chop and blend as it is supposed to. My original blade with a broken bearing seal, hence the need for a new one, even after 12 years of regular use, is MUCH sharper. The cutting edges of this are just blunt.It is working great and we are very happy that we did not toss our Vitamix. It is very easy to screw and I did not need any special screw driver since I used my hands.Es un producto muy útil y es bueno y durablewet and dry materials....does not leak like the old one....