- Upgraded 2-in-1 Design : This dual car cup holder expander easily converts into two separate holders. Rotate the upper section to securely hold two beverages at once. The lower holder supports items up to 3.14 inches in diameter, fitting most thermoses. The upper adapter expands from 3.14 inches to 5.9 inches to accommodate larger bottles, cups, tablets, or even food containers. - 360° Rotation for Convenience : The upper cup holder adjusts for size and rotates 360 degrees, allowing easy access to your drinks. The lower holder is designed for stability, and foam pads can be used to reduce vibration and enhance balance. - Stable Base for Enhanced Functionality : The base of the upper cup holder rotates freely for easy reach while driving. The lower base expands to 3.3 inches in diameter, compatible with most standard vehicle cup slots. Suitable for cars, golf carts, trucks, boats, and RVs, its longer base ensures increased stability for all your items. - Simple Installation : Installing the cup holder is straightforward. Insert the base into your vehicle's cup holder, rotate the expander to adjust, and securely fasten. Designed to fit most cup holder designs, please verify dimensions before purchasing to ensure compatibility. - Practical Applications : Perfect for multitaskers, you can easily keep drinks and snacks within reach during road trips, ensuring hydration and convenience. Great for families with kids who need quick snack access on the go. Ideal for anyone who enjoys outdoor activities like golfing or boating, allowing you to enjoy your beverages without spills.