Ram Mount Combination Brake/Clutch Reservoir U-Bolt Mount for the Garmin nuvi 600, 610, 650, 660, 670 and 680 Consists of a 1" diameter rubber ball, hardware for mounting to both brake/clutch reservoirs and rails that are 0.5" to 1.25" in diameter The mounting hardware for brake/clutch reservoirs include both standard and metric mounting bolts Multiple pivot points, rubber ball and socket technology allows for almost infinite adjustment High quality materials insure your device is safe, secure, and within easy reach The holes centers have a minimum width of 0.94" and a maximum of 1.58" 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