Tai Chi Ruler and Tai Chi Bang Review | All you need to know | Enso Martial Arts Shop 

Definitely would help students to imagine the 'energy ball' inbetween their hands. visualization is hyper important during Tai Chi training. :)

Opens meridians the hands and feet mirror the whole body decreases blockage Easier transition to sword form less space needed 👌 🙌

sorry, what part of the video did you feel was a waste? we always apprentice feedback and would love to improve our content

It depends on who needs it. It is a training tool, probably more for beginners and less coordinated people. I have seen boxing coaches tie their student's legs with a measured strap so that they learn how not to step too wide.

Same could be said for anything if you're not interested in it, can't it. Dude explained its purpose in the video.