The 'Royal Rascals Baby Car Mirror in Safety Yellow' is a brilliant product. It shows that it's been designed by a parent, as it has all the practical functionality that you need without any of the unnecessary expense-adding features.
It was a doddle to install (in less than two minutes) and fitted securely to our headrest in the back seat of our car. The ball joint was flexible enough to make it easy to move into the correct position and firm enough that it didn't move when going over bumps in the road (unlike some other baby car mirrors).
The safety yellow colour is great for quickly drawing your attention to baby without being a distraction. I also liked the wide viewing angle which meant you could see baby even when they moved around in their seat and is perfect for viewing baby from different angles, ideal for parents of varying heights.
Overall, I would highly recommend this product for anyone with a car and a baby.