RAM Mounting Systems RAP-299-2-TO6U Cup Holder Mount with Flex Arm for TomTom GO 520, 520T, 720, 720T, 730, 920, 920T 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