The RM0804P windshield suction mounting pedestal is part of Arkon's Robust Mount Series. It replaces, upgrades, or adds to an existing pedestal and is compatible with 4-prong iGRIP smartphone or tablet holders (sold separately). This package includes only the Heavy-Duty 80mm Suction Mounting Pedestal with 4-Prong Head. (Holders sold separately.) The suction mounting pedestal is ideal for car windshields. This tough, low-vibration mount measures 6.5" high and is made of a combination of plastic and glass fiber. It features an 80mm TPU suction base that works well in all climates. The arm of the pedestal swivels on both the top and the bottom, providing 360-degree rotation and the ultimate flexibility in positioning the smartphone or tablet at any angle. To install, simply clean the mounting area with the included alcohol pad to ensure an optimum grip, then set the pedestal and push down on the one-touch lever to engage the suction.