Ram Mount RAM-B-149-GA40U Ram Mount U-Bolt Rail Mount for the Garmin GPSMAP 78, 78S and 78SC 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 Patented universal rubber ball and socket system allows you to mount virtually anything anywhere. Made of high strength composite 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