1. Each float has a diameter of 8 inches. Cup hole diameter: 2.8-3.1 inches. Floating drink holders fit almost any size cup, drink and bottle. 2. SIMPLE AND PORTABLE: This drink float is very lightweight, you can take it to any party, just fill it with air when you want to use it. When you feel thirsty while floating or swimming with your friends, you can take the float into the water and enjoy the party time. 3. The cute design of the drink holders makes them a pretty cool pool party decoration, and they look great when floating together with full-size inflatable pool floats. 4. They are an ideal pool accessory when you are having fun in the sun; because you can always have a cold drink by your side! The floats are suitable for summer fun; and nice to have when you just want to relax and unwind. 5. It can be given to a second child or you can give it to relatives and good friends with best wishes. You can also hang it in the child's bedroom. If you are a photographer, you can use it as a prop for photos, in any case, it will be a trivial but meaningful item that will be unforgettable for a lifetime on your child's first birthday.