The RAM-B-166-TAB12U consists of a 3.3-inch diameter suction cup twist lock base, double socket arm, round base plate, and Tab-Tite universal clamping cradle. The suction cup base is designed to have a strong hold on glass and non-porous plastic surfaces, including RAM adhesive disks. The mount includes a patented RAM B size 1-inch diameter rubber ball and socket system that has adjustment points at both ends of the double socket arm, allowing for almost infinite adjustment and perfect viewing angles. The spring-loaded design makes it easy to load and unload your tablet while keeping it secure on the go. Interchangeable cup ends are designed to optimize the functionality of your tablet, allowing access to audio jacks, USB, power, and other ports, so your tablet can be used just as intended. Included in this kit are custom support cups for the iPad mini 1, 2, 3, and 4 with a light-duty case. The Tab-Tite cradle is compatible with any tablet that fits the dimensions listed below. It is important to verify the dimensions of your tablet when determining the overall size.