- Durable Material: Crafted from high-quality 304 stainless steel with a sleek black coating, this cup holder is not only visually appealing but also built to last. Its rust-proof and weather-resistant properties ensure long-term performance in various conditions. - Versatile Design: The unique ring-like design, with a 3.1-inch diameter, accommodates a wide range of standard-sized containers, including can drinks, water bottles, beer bottles, 30oz tumblers, and most cups and mugs. - Simple Installation: This cup holder comes with all necessary screws for easy installation on walls, railings, guardrails, wood surfaces, or any location you choose. Enjoy hassle-free setup without the need for specialized tools. - Broad Applications: Ideal for use in a variety of settings, this cup holder is perfect for marine boats, fishing boats, pontoons, yachts, trucks, cars, tractors, motorcycles, RVs, apartments, hotels, warehouses, swings, and more. - Enhance Convenience: Keep your drinks secure and within reach while enjoying outdoor activities, traveling, or relaxing at home. This cup holder is designed to solve the problem of spilled drinks and provides a practical solution for on-the-go lifestyles. Optimize your space and enjoy the convenience of this reliable cup holder, suitable for both everyday use and adventurous outings.