Product review (4 stars): Works great
I can't say if it fits my Ultra Pro KA mixer because I only used the knob. I did as others have and held the knob while heating the metal bar over a flame. It only took 30 seconds or so before I was able to pull the knob off and then just put it on my mixer bar. I guess the knob was warm enough to form to the mixer bar because when I went to pull it off so I could glue it, I couldn't get it off. No glue required.