RAM Mount Quick Grip XL Phone Mount with Handlebar U Bolt Base Short RAM Quick Grip XL Phone Mount with Handlebar U Bolt Base Medium B Size Ram X Grip Phone Mount With Tough Claw Small Clamp Base Standard RAM Quick Grip XL Phone Mount with Grab Handle & A Pillar M6 Bolt Ba RAM Quick Grip Phone Holder Mount Kit Ram Mounts. 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"