The Griplox Clamp Mount Drink Holder was designed to offer a new way to hold your drinks, while on the water. There are never enough drink holders on a boat, especially when you're entertaining. This drink holder is made of stainless steel, which will prevent the mount from rusting. Griplox by Bracketron has the perfect solution. The Clamp Mount Drink Holder features our strong and durable clamp technology, that works on any round or square rail from 15-45 mm in diameter. This beverage holder has 360-degree rotation that allows you to mount this drink holder at virtually any angle the Clamp Mount Drink Holder not only provides you with additional beverage holders in your boat, but you can place them where you need them most. Just like our Suction Mount Drink Holder, the clamp version was designed with a two-way gimbal that will keep your drinks level amid the waves and avoid spilling in the boat.