Shoulder rehab

[Foilgeoff]

Years of action sports and a brain dead e-scooterist have left me with shoulders a bit worse for wear. Wingfoiling wasn't really making it worse but it was certainly aggravating it.
I found a reference to Powerball on Seabreeze and ended up buying one. Amazing. I thought I'd re-post here as it may help other people. It rehabbed my shoulders and those of a friend within minutes!
A few minutes with this and I had shoulder range of motion that I haven't had in ages. My friend has been suffering for 3 months from something like repetitive strain injury. It was 95% gone within minutes.
I got it for about $130 on Amazon Australia (I'm in Wellington, New Zealand). Super cheap knockoffs are on Ali Baba.

https://rpmpower.com/info/autostart-powerball/