I got this thing four months ago and I have to say I adore it. It has really strengthened my grip a lot, as advertised. The ball shows no signs of wear but the thumb strap has slowly been cracking along the silicon molding line since the first couple weeks. when it finally snaps, there was another and included in the box. I could not tell and difference between the two silicon bands. I hypothesize that replacing broken bands with four rubber bands should be a snap. (you see what I did there)I use it for about two mins on each hand per day. I take it on vacations and notice my muscles atrophying very quickly when I forget it. At first, there was pain but I have since started to learn the meanings and causes of the different types of pain my hands give me. There is a pain for when you worked your hand a lot the previous day and it just needs to be warmed up, a pain for when you used your hand too much over a small span of time and it needs to be rested, and fatigue you feel immediately after an activity.along with meticulous stretching of the small hand muscles and larger arm and back muscles, i'm feeling much better now. I haven't noticed the ball giving my hands any of the stamina I had hoped it would give me for doing art, but maybe I need to make my tiny workout last longer? I originally could only draw for 20 minutes before fatigue set in: now i'm back up to an hour of continuous doodling or animating, and that's putting me well on the road to where I was in highschool. The ball definitely improved my grip strength, though, and the pain felt when lifting something with my wrist is gone.tl;dr: the foam ball with a hole strung with rubber bands has been taken to a whole other level and you need this thing like you need a ball filled with rubber bands. ie: a lot 3
Rating: [5 of 5 Stars!]