RAM XL Quick Grip Phone Mount with Yoke Clamp Base (sku 58724) Ram Quick Grip XL Phone Mount Ram X Grip Phone Mount With Tough Claw Small Clamp Base Standard RAM Mounts Quick Grip XL Phone Mount with Handlebar U Bolt Base RAM B RAM Mount Quick Grip XL Phone Mount with Handlebar U Bolt Base Short. 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"