Here is your video !
These are invaluable exercises to develop the muscles you need to sustain your breath and sound for longer, more easily.
This gives you better projection, stronger tone, and removes a lot of the stress and worry around breathing for singing.
Enjoy making more of an impact with your voice!
(If you can't see the video I do apologise, I have been alerted to this being an issue for some people, and I am trying to fix it)