This motorcycle mount makes attaching to handlebars, tubing, or railing a breeze. Simple to install and easy to use, the possibilities become endless. The zinc coated metal u-bolt and nuts included are designed it fit motorcycle 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 GPS 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. This mount is designed to hold the following devices: Magellan CrossoverGPS 2500T Magellan Maestro 4000 Magellan Maestro 4040 Magellan Maestro 4050 Magellan RoadMate 300 Magellan RoadMate 360 Magellan RoadMate 500 Magellan RoadMate 500 Plus Magellan RoadMate 2000 Magellan RoadMate 2200T Magellan RoadMate 3000T Magellan RoadMate 3050T Magellan RoadMate 6000T Magellan RoadMate 700 Magellan RoadMate 760 Magellan RoadMate 800 Magellan RoadMate 860T Material: Powder Coated Marine Grade Aluminum Ball Size: 1″ Rubber Ball „B” Size Note: The „U” in the part number reflects product packaged in poly bag.Related Links:RAM GPS Mounts PageRAM Motorcycle Mounts Page RAM® double socket arms with their distinctive hour-glass shape are designed and recognized to provide the best possible performance for most any application.