The RAM-B-166-TAB12U consists of a 3.3" 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 is includes a patented RAM B size 1" diameter rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The spring loaded design makes it easy to load and unload your tablet, along with keeping it secure while 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, your tablet can be used just as it was intended. Included in this kit are custom support cups for the iPad mini 1,2,3,4 WITH Light Duty case. The Tab-Tite™ cradle is compatible with any tablet that will fit the dimensions listed below. It is important to verify the dimensions of your tablet when determining the overall size.