18mm Stem Sports Bike Phone Mount with Deluxe Cradle (sku 41389)Deluxe 18mm Bike Stem Phone Mount Phone mount & deluxe phone cradle with solid construction which securely grips most mobile phones. Features a spring loaded mechanism that expands to hold smartphones. Ideal for using with a case. Designed to use two hands to install and remove your device. This is to make sure your device cannot be accidentally removed while adjusting viewing angle. The low profile phone holder keeps rear smartphone cameras free.