This is your personal cup holder – never again do you grab the wrong bottle, like the one your seasick buddy just had his gross lips all over. It doesnt get any simpler than this – a single cup insert held to a vertical surface (like the side of your console) by a powerful-yet-simple-to-use SeaSucker 4.5 vacuum mount. The cup holder insert removes for easy cleaning and can be swapped out for one of our Small Dry Boxes (available HERE), which effectively turns this into a convenient holder for your cell phone and other items you dont want to get wet.