Fixed hooks are much more practical than traditional straps, and allow to properly orient the screens, very useful if we have 3 rows of seats, for children on the 3rd row also may see the screens.
The picture is very good, the screen size is just perfect (greater because it would be too much too close to the eyes of children).
The son are long enough to get ahead of the car with 2 screens, and even third-row seat if you have one too.
In short, a very good product easy to install and use and a very good price / quality ratio.