So I've been having it Mystic 29 for a long time now which I never bothered with the other day I went to look at it and the prop shaft did not fit correctly so I purchased the new one that I thought would work obviously didn't the prop shaft is too skinny and the plastic part that the shaft goes into will not fit inside the boat I thought all the 29 Pro Boats were the same that's what I bought don't work just a mess so I advise anybody that owns a Mystic 29 this part will not work for your boat don't waste $40