I have a couple. They're not expensive. They would be good if they were in an out-of-the-way location - but that is NOT where we locate rod holders. So when I try and use them, they usually get banged-into and knocked apart. Then you just pick everything up and snap it back together.

I liked the plastic cleat that goes into the rod holder. I used it for fender storage til it got lost overboard. Now I can't find one anywhere.