Cuda's Customs Marine Boat Cup Holder Universal Clamp-on Mount, Cuda Cup/Smart Cup Technology, Weatherproof Cup Holders for Boats, Tree Stands, Bikes fits 1 1/4 inch to 3/4 inch Outside Diameter

We have two of these on our boat, one of which we have had for quite some time. We are a retired couple that uses our boat 3-4 days a week. Cuda Customs cup holders are rugged and hold our water bottles secure in choppy water. I do wish that they were gimballed as the grab rail that they are mounted on is not completely vertical, but that is more of an aesthetic issue rather than a functional one. I would recommend this cupholder to anyone that needs a rugged cupholder that will also hold a pair of needlenose pliers.

I used this for my beach cruiser so I can ride with my 30oz Yeti tumbler. I had a hard time finding a cup holder that would fit the Yeti and this does it perfectly. I painted my cup holder black to match the color of the bike and no issues at all. I used a rubber gasket so it wouldn't slip on the handlebars and it works like a champ. Great product.

They work great! They screws were too long for my 7/8" tubing. I wasted a half hour because they were too cheap to send 2 shorter screws along with the longer screws.

Not for the Marine purpose but I saw it at my local ship store and had to have two

Bought for our Key West 1520 and it looks and fits awesome! No holes to drill in your boat at all..

Perfect for the boat, and it’s the yeti style tumblers perfect

The cup holders look good on my boat, work great and were easy to install. They shipped faster than I expected too. Great product. I will probably be ordering a couple more.