Description: Material: Made from stainless steel, this cup holder is designed to withstand the test of time and resist wear, making it great for long term use.Stable and Firm: The pontoon drink holder can be easily fixed in place, and hold your water cup or drink stable, making it not easy to tip over or spill.Universal Size: With an inner diameter of 8cm, this cup holder can accommodate most standard sized cups, bottles, and mugs. Product dimensions are 10.3cm in length with a diameter of 8cm and height of 7.5cm.Easy Installation: The cup holder is easy to install with included screws making it convenient for immediate use.Versatile Use: This multipurpose cup holder can be used in various settings including boats, caravans, cars, and yachts among other mobile environments. Specification: Material: Stainless Steel Size Chart: Length: 10.3 cm/4.06 inchDiameter: 8 cm/3.15 inchHeight: 7.5 cm/2.95 inch Package Includes: 1 Boat Cup Holder with Screws Note: Please allow slightly errors due to manual measurement and different monitors.