Ram Mount Handlebar Rail Mount with Zinc Coated U-Bolt Base for the TomTom GO 520, 520T, 630, 720, 720T, 730, 920 and 920T Consists of a zinc coated U-bolt base, double socket arm, diamond adapter base and high strength composite cradle for the TomTom GO Designed with a RAM 1" diameter patented rubber ball and socket system Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter Also included are black cover caps to be placed over the exposed ends of the U-bolt and a composite adapter that can narrow the rail to a minimum width of 0.5" High Strength Composite &amp; Powder Coated Marine Grade Aluminum Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of marine grade aluminum with a powder coated finish and rubber balls 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