Secure your smartphone for handsfree usage with the WeatherTech CupFone Mobile Phone Holder. Add or remove the interchangeable base cups for a snug fit inside different cup holder sizes. Ideal for boats, golf carts, RV, vehicle, and more, the CupFone mobile phone holder fits most standard-sized phones on the market with 2 sizes available. Standard size fits phones measuring 2-3/8" to 3-3/8"W. XL size fits phones 2-7/8" to 4-1/8"W. Easy-to-use design allows for simple 1-handed phone removal and charging while in the holder. Allows for easy hands-free phone usage Can be easily used in almost any vehicle Keeps your focus on the road