The patented FloatsupA(R) Cup paddle board and kayak beverage holder installs easily under existing bungee cords and fits a wide range of can and bottle sizes. SUP or paddle to your heart&';s content with whatever beverage you choose. It can also be used to stash waterproof speakers, sunscreen, and other items you want easy access to. Floatsup Cups are made with recycled materials, are flexible but durable, and they float! Fits any can or beverage up to 3" diameter.