The RAM Suction Cup Ratchet Pivot Mount, Socket Arm & Octagon Button simply attaches a flat surface of your vehicle for an easy and safe way to view items such as a GPS. The RAM rubber ball and socket technology allows for adjustment and perfect viewing angles. High quality materials ensure your electronic device is safe, secure, and within easy reach. RAM's patented design also dampens shock and vibration helping to extend the life of your mobile device. Please note the illustration shows a diamond base not the RAP-277 octagon button.