This RAM mount makes attaching to handlebars, tubing, or railing a breeze. The zinc coated metal u-bolt and nuts included are designed it fit handlebars, or circular rail that are 0.50" to 1.25" in diameter. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your Samsung Galaxy Tab 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.  Included custom cradle allows full access to all ports, buttons and camera.