This ball cured my sense of mortality, I am now without weakness. When I had soft baby hands, things felt as if they had some sort of control, as if their bodies had some power over mine. This ball has made everything feel like fluffy pillows and feathers, just beings with form to which I can harness to my will. Anything I wield is without a doubt going to find residence within my grip until i decide otherwise, it’s as if everything I hold is my Thor’s hammer until i deem it unworthy of my touch.
This ball gifted me elite ball knowledge of all matter around me, 10/10 5 stars easy
Wanted to improve my grip for certain workouts. Works surprisingly well, but takes consistent use. I have ADHD, so it's nice having something to fidget with that helps for the gym.
I have patients that come in with excessive sweating in their hands due to hyperhidrosis (usually at the request of a partner). After using this callus ball myself to build up my hands for pull-ups, I started recommending it to my patients with overly-sweaty hands. I've only heard good results!
I’ve tried sandpaper blocks but this is safer and easier. Plus it actually trains grip strength at the same time.
Great texture and size. Easy to carry around and use anywhere. Definitely noticing thicker skin on my upper palms and fingers. Wish they had more colors than black!