where can i get the pompa training

Day 40 of growing thicker hands. I already did it before but not seriously enough. I will do it until day 300

I made a videos for all of you who want to make my machine. Btw my English speaking is terrible.

Good morning everyone, what would you say are the most underrated muscles that people forget to train or forget to include in their workout plans? I found a website that lists some of these: https://www.mensjournal.com/health-fitness/7-muscles-everyone-ignores

I made a homemade thumb lever machine I technically made 2 versions of the thumb machine but I give my second version away to a friend. I have 1 photo of each version: BTW if you need help in making one yourself/making a video about making one of these (if you want a professionally made version buy it from golden grip).