The RAM-HOL-UN8B consists of a spring-loaded holder and a 1" rubber ball attached to the back of the base. It also includes easily accessible grip knobs on the back of the holder for quick release of your tablet. The RAM-HOL-UN8B expands and contracts to provide a perfect fit for most 7"-8" tablets. The X-Grip features a device tether, which is recommended for outdoor use. The holder is compatible with portable devices that fit within the dimensions listed below. It is important to check the dimensions of your portable device with a case, sleeve, or skin to determine the overall size.

Holder dimensions:
Minimum width = 2.5"
Minimum height = 7"
Maximum width = 5.75"
Minimum height = 4"
Depth = 0.875".