Overall I'm happy with this mount. We use it to hold our 12.9 inch iPad on long trips for the kids. Two complaints are that it's impossible to hold the iPad steady and it wobbles when we drive - we just can't tighten it enough. The second problem is that the nut to tighten the actual tablet holder cannot be tightened enough, it always goes deeper than desired. At the same time, as they say, it works and we are generally happy with it.
Pad Mount Compatible Universal Pro
10 Review
Arkon Phone Car Mount for iPhone & Galaxy, Windshield & Dash Compatible - Retail Black
11 Review
High-Quality Tablet Mount for Car Headrest - Multi-Passenger Backseat Holder Stand Compatible with Tablets: Apple iPad PRO Air Mini, Samsung Tab A E S4 - Anti-Vibration Swivel Cradle (7-15 inch displays)
11 Review
Car Headrest Tablet Holder for iPad - EXSHOW Car Between Back Seat Mount Clamp for iPad 2020 2019 2018 iPad Pro 12.9 11 10.5 10.2 9.7 iPad Air, Samsung Galaxy Tab, Huawei Tab and More - Fits 9.7''-14.5'' Tabs
10 Review