Manufacturer DescriptionThe RAM Stubby™ cup holder base is a low-profile option of our cup holder mounting base. The durable composite shell construction and flexible support fins can be trimmed to size make this cup holder base a portable and versatile solution. The mount is designed with a patented RAM 1" diameter rubber ball and this kit includes a standard-length arm so that any of your existing device cradles can be used with this versatile base. The RAM ball and socket system allows for articulation at both ends of the double socket arm creating almost infinite adjustment and perfect viewing angles.Compatible with any vehicle cup holder with an inside diameter range of 2.57" to 3.5".What's Included In The Box?The RAM Mount Stubby Cup Holder Mount Base with Double Socket Arm ships with the following items included:RAM Mount Plastic Medium Arm B-Socket RAP-B-201URAM Mount Stubby Cup Holder Mount Base