I bought this thinking it was the carpuride adaptor only, but you get the quadlock and a mount that could make it all work on a flat surface. I already had the quad lock mount so just needed the adaptor for the carpuride. It works a treat. A I added some silicone grease to the mating faces to help with weather protection. Only time will tell.
Slightly cheaper alternative to the manufacture and just as good. ( I’d like less branding, let the items speak for themselves, but I do understand that you want to advertise your products )