Product review (3 stars): Good part but my Magic Bullet was too old to get the part out
I had a Magic Bullet for over 10 years when the plastic wheel in this part disintegrated. I use it on a daily basis. I do not fault the part. If I could have got the bottom piece to screw out it would have been easy to put on. Too many years of ground in "whatever". My suggestion is to make sure you can get the piece out before ordering the part. However, I do slight not having any instructions enclosed. I had to look up the reviews to have someone explain to me how to go about it.