The RAM-B-189-TAB8U consists of a double 3.3" twist lock suction cup base, double socket arm, round base adapter, and Tab-Tite universal clamping cradle. The suction cup base is designed to have a strong hold on glass and non-porous plastic surfaces. The mount features a RAM 1" diameter patented rubber ball and socket system with adjustment points at both ends of the double socket arm, allowing for almost infinite adjustment and perfect viewing angles. The included Tab-Tite cradle has a spring-loaded back plate and custom support cups for 10" screen tablets with heavy-duty cases. The spring-loaded design makes it easy to load and unload your tablet while keeping it secure on the go. Interchangeable cup ends optimize the functionality of your tablet, allowing access to audio jacks, USB, power, and other ports, so your tablet can be used as intended. 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.