
I attached this to Elgato's short arm and then slipped my Samsung s7 plus into it to use as an 'extra' monitor at my work station. For example, how to tighten it precisely so that it fits your tablet perfectly. I had to take my S7 plus out of the case for it to work well. A good product will buy more.

Innovative Car Tablet Headrest Holder: Adjustable Mount for iPad Pro/Air/Mini, Samsung Tablet, Fire Tablets, Phones (5"-13") - Black
11 Review

10.5" Tablet Apple iPad Air 2019, 256 GB, Wi-Fi, iOS, silver
11 Review

π Universal Car Headrest Tablet Mount Holder - Compatible with iPad Pro 12.9/11, Phones/Tablets/Switch 4.7"-12.9" - Adjustable Headrest Posts Width 5.2in-5.7in - Sleek Black Design
10 Review

LISEN Headrest Compatible Smartphones 4 33In 8 66In
9 Review