The u-bolt base makes attaching to handlebars, tubing, or railing a breeze. Simple to install and easy to use, the possibilities become endless. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your Apple iPhone is safe, secure, and within easy reach. RAM’s patented design also dampens shock and vibration helping to extend the life of your mobile device. Cutting edge products like the Apple iPhone deserve a cutting edge mount and RAM delivers. Included in this package is hardware for tubing that is 0.75″ to 1.25″ in diameter. This mount is designed to hold the following devices: Apple iPhone (1st Generation)Material: High Strength Composite and Powder Coated Marine Grade Aluminum Note: The „U” in the part number reflects product packaged in poly bag. This mount will not hold the Apple iPhone 3G or iPhone 3G S.