Motorcycle Mirror Mount & RoadVise Universal SmartPhone Holder (sku 31727)Bike, scooter, moped mirror attachment fits any bar with a diameters between 8mm 16mm Attaches to the mirror stem giving a secure base for the phone holder The phone holder's solid construction provides strength and reliability on the road by securely gripping smartphones with protective cases weighing up to 900g (2lb) and measuring up tp 10cm (4 inches) wide. Spring loaded mechanism expands to contain your mobile device. Designed and recommended for