bummer. I just had the same issue with my order. I bought a new shift knob online. There was lack of information in the description. It didn't say, non threaded type or the size. This thing was huge, like for a gorilla hand huge. It was almost as big as the car, or a Miata wheel size lol. I was able to return it for a full refund, since the company didn't mention anything before I bought it. I always read the return policy before buying anything from any company
That's the downfall of internet buyers. We don't know what we are getting, til we get it.
Are you getting the CF one?