I found this device in my closet that I had bought a couple years ago. I dug it up because my right wrist has some pretty bad pain in it. I think it’s because of curls, but that doesn’t really matter.
I had forgotten how awesome this thing is. It’s called a powerball and it’s basically a gyro encapsulated in plastic and it works out your forearm while conditioning your shoulder and elbows. I had originally bought it for baseball but remembered how it helped my wrists out too, so I dug it out of my junk closet.
It you work it out hard enough it can give your entire arm a pretty good work out and definitely help stabilize your wrists.
I bought mine off of ebay when the company was relatively small but it looks like they’ve grown an awful lot.
check them out here. I have the one thats 27.99