Ram Mount 9mm Angled Motorcycle Base with Double Socket Arm for Apple iPod G1, G2, G3, G4, G5 and U2 (Black) Simple to install and easy to use, the possibilities become endless Apple iPod G1, G2, G3, G4, G5 and U2 High quality materials insure your Apple iPod is safe, secure, and within easy reach The hole in the mounting base measures 9MM in diameter With a turn of a single comfortable to grasp knob, adjustments can be made and the sleek hourglass shape of the arm assembly compliments the lines of any motorcycle Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of high strength composite Superior shock and vibration isolation for electronics Unique design provides easy installation, mobility, strength, adjustability and versatility Construction provides a light weight and corrosion resistant product