SIMPLE INSTALLATION AND EASY TO USE - This heavy duty cup holder mount is very easy to install. Featuring a quick release button, your smartphone can easily be inserted and quickly removed with one-hand even while you are driving. VERSATILE COMPATIBILITY - This mobile windshield mount is tested to fit smartphones including iPhone XS, MAX, Samsung Galaxy S9+, and 10+ with Otter Box Defender Cases, and Samsung Note 9 with the Pelican Voyager Case. It also works with other smartphones. FULL RANGE OF MOTION - This smartphone mount comes with a strong, expandable 4 way grip holder that accommodates most phones even with protective cases. The holder allows 360 degree rotation and can be adjusted to every viewing angle as per your needs. STRONG, STABLE GRIP AND FLEXIBILITY - The high quality and bendable no-vibration boom arm expands up to 13" and allows you to adjust the placement of your device as per your needs. This mobile cup holder mount is also expandable to fit all cup holders. STURDY & SECURE MOBILE CUP HOLDER MOUNT - Navigate hands-free in a safe, and easy way with ToughTested's Boom Adjustable Mobile Cup Holder Mount. It holds the phone vertically or horizontally while easily absorbing vibrations as you cruise down the road.