This is one of my favourite stretches!
It targets the levator scapulae muscle; which is one of the muscles involved in elevating your shoulder blade. A lot of people have tension in this muscle so it’s great to stretch it out throughout the day.
If you put your ear towards your shoulder you should feel a stretch down the opposite side of your neck, that is your upper trapezius. Now if you turn your head so your nose goes towards your shoulder, the stretch will move backwards to your levator scapulae.
I think it feels great, try it out and let me know what you think!