Amzer Bicycle Handlebar Mount for BlackBerry Tour, Niagra 9630 (Black). Swiveling head rotates the custom fit cradle and your device to the perfect viewing position. Swivel ball joint with locking ring - enables the holder to be positioned and locked in place. Suitable for handlebars between 0.75 inches to 1 inch in diameter. Absirb shocks and keep your Blackberry 9630 safe. Easily transferable from one Bicycle to another.