RAM Quick Grip XL Phone Mount with Low Profile Tough Claw RAM Mounts RAM Quick Grip XL Phone Holder with Ball RAM Quick Grip XL Phone Mount with Track Ball Base Long RAM Mounts RAM MOUNTS Quick Grip XL Phone Mount RAM HOL PD4 400 1U B&H Ram Quick Grip XL Phone Mount. The RAM Quick Grip with Yoke Clamp Mount Twist Lock Suction Cup consists of a yoke clamp base, double socket arm and spring loaded cradle for supporting most phones. The clamp base will accommodate rails in diameter from 0. 625" to 1. 25". The double ball and socket design provides adjustment points at both ends of the socket arm with the turn of a single knob, allowing you to set your phone to the optimal viewing position. Hardware included Assembly Hardware Holder dimensions Height Range: 5. 75" 8. 25" Width Range: 2. 625" 3. 625" Max Depth: . 72" Clamp range . 625" 1. 25" Socket to socket length 3"