The RAM mount simply attaches via the suction cup base to the windshield of your vehicle for an easy and safe way to view your electronic devicee. The RAM rubber ball and socket system allows for adjustment and perfect viewing angles. High quality materials ensure your phone or PDA 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. When attaching the suction base, it must be clean and dry and so must be the surface it affixes to. An alternative method is to attach an adhesive rose pad the RAP-350 on to the dash area and fix the suction base onto it.