Heavy Duty Super Suction Super Strong Clamping Force Product Features : - The power suction enables you to mount on almost any flat surfaces such as glasses, metal plastic and even dry-well. - Silicon lined grid keeps your phone or other devices of all shape safe and secure. - Easy to assemble, and adjusted with a variety of different angles. - The short length (within 90 mm) of the bearing devices. - The holder can be adjusted at any angle to suit the drivers need. - The product does not use adhesives or magnets besides, it can withstand daily sunlight.