I got this mount for my ELD in my truck. I'm running an ipad mini. The backing plate is a MUST HAVE. I've had several of the plastic, over-priced, cup holder arms that you can find in the truck stops and all of them vibrated and wiggled. Not to mention losing a cup holder in the process. Not this one, it's as I said in the title...ROCK SOLID...no wiggles, no shimmy, no breaking, and most importantly- no dropping the ipad on the floor. There is a knurled ball joint mounted to your preferred spot on the dash, mine is as you see in the pics, and a matching knurled ball...they are identical and interchangeable...on the back of the cradle connected by 2- 3.5" arms with a joint in the middle. There are 3 points of adjustment and 7 inches of reach in this kit so you can get your device wherever you want or need it to be. The cradle assembly itself comes with three different sizes of tabs so it will hold any tablet with tender loving care while you're blasting down the highway. The bottom is spring loaded. It's (surprisingly) not as heavy as you might think. Yes, the cradle itself is plastic, so we'll see how it holds up over time. Their order to fulfillment speed is extraordinary. If they say two days, they mean it. You simply can't go wrong with this kit. Plus...it looks good too. Now if I could just find a 1 foot cable, I could clean up that hot mess wrapped around the shaft. LOL. Get it. You won't be disappointed.