- Expandable Base: Our adapter easily extends from 2.5 inches to 3.75 inches in diameter, making it compatible with a wide range of automotive cup holders. Perfect for use in golf carts, boats, and trucks, the extra-thick pads ensure a secure fit. - Convenient Nesting Design: The cup holder features a deep base that enhances stability, allowing for easy removal from its nest. This design provides excellent balance for your water bottle and minimizes spills. - Krubber Tabs for Secure Fit: Designed for bottles with diameters of 3.2 to 3.8 inches, the Krubber tabs are crafted from a specialized material that allows for effortless insertion and removal of bottles. This ensures that the adapter remains in place when you take out your bottle for a drink. - Stability Enhancements: Our adapter includes eight cushion foam pads that can be applied to the lower half, filling gaps between the cup holder and your vehicle’s cup opening for increased stability. Use Cases: 1. Ideal for long road trips where hydration is key, keeping your water bottle secure and accessible. 2. Perfect for boating adventures, ensuring your drink stays in place even on choppy waters. 3. Great for golfers who need a reliable way to keep their beverages stable while navigating the course. This adaptable and stable cup holder solution is designed for convenience and performance, addressing the common challenges of maintaining drink stability in various vehicles.