US-5122C Features: -Easily remove tablet bracket from mount. -Fits headrest poles 2.17" ~ 7.28". -Tablet holder rotates 360 degree and tilts to provide viewing angle adjustment.. -Universal clamp fits most car headrests, the side rail allows for horizontal position adjustment. -Universal tablet car headrest mount for 7.9" and 12.1" iPad pro and most of 7.9" ~12.1" tablets. Product Type: -Computer Security. Dimensions: Overall Height - Top to Bottom: -10". Overall Width - Side to Side: -6". Overall Depth - Front to Back: -4". Overall Product Weight: -4 lbs.