Product details:

CupFone XL uses the same interchangeable base cups as CupFone, that allows for a snug fit in the cupholder of any vehicle. Whether its a boat, golf cart or RV, youll be ready to ride with CupFone XL. Able to fit phones sized between 2-7/8 inch to 4-1/8 inch wide and with a depth of 5/8 inch, so you wont have to worry about a thicker protective case. CupFone XL also allows for easy one-handed removal. An open-access design lets you charge your phone in place, so you wont have to worry about your battery, unless you forgot your charger. You can also swap your CupFone XLs plastic knobs with 11 different colors of aluminum billet knobs.100% Designed, Engineered, and Manufactured in the USA by WeatherTech!
Two Billet Aluminum Knobs Included.
Open access bottom lets you easily charge your mobile device while it is in place.
CupFone XL's adjustable phone holder can fit devices that measure between 2-7/8" to 4-1/8" wide and 5/8" deep!
Designed using interchangeable base cups allowing you to customize the perfect snug fit.