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 Garmin GPSMAP 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 Garmin GPSMAP 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.