We have been through a few sun shades for our little ones. Some are too small, others don't stay on securely and obstruct my view when driving.
These are perfectly sized to cover the window completely, they don't fall off, like so many other, and they provide just the right amount of shade without obstructing my view out the window too much. They are well priced, good quality and delivered promptly. I would highly recommend these if you are looking for affordable sun shades for your little ones.