Size: 9.5 x 9 cm, can hold a variety of beverage bottles. Bottom Suction Cup: This spill-proof cup holder has strong suction to effectively prevent slipping, scratches, and bumps, and can firmly hold your favorite room temperature and cold drinks on any smooth surface. Easy Installation: Installing the cup holder is a breeze: simply place it on the paddleboard and press gently to securely fix it in place. Removal is just as easy, just gently lift the edge with your fingertips. Multifunctional and Perfect Gift: The Paddleboard cup holder is suitable for all occasions, including boats, caravans, cars, trucks, RVs, vans, yachts, bars, restaurants, sinks, desks and dining tables at home, and it is also the perfect gift for surfboard and kayak lovers. Note: The data are all manually measured, please allow an error of 1-3 cm. Due to differences in light and display, there may be some color differences, please refer to the actual item received.