Perfect for your impromteau trips, this cup holder can hold three drinks. With the SeaSucker Three- Cup Holder, the vertical mount gives you the ability to mount on the side of your vehicle if you are camping, on the side of your truck when you are working, or even on the inside of your boat when you are hitting the waves. This can be purchased with or without the tumbler adapters, depending on your needs. So, don't forget the SeaSucker Three- Cup Holder the next time you want to hold your drinks!