A7

I have the this A7 and the F2 (lighter version). Bottomline: I've had right shoulder stability issues for a long time. And of course, the pain/range of motion that accompanies the instability. The standard recommended exercises only provided limited improvement. My shoulder felt loose in the socket. First time I used the ShouldSphere, I felt the muscles heat up (in a good way). The entire rotator cuff seemed to activate. Started with 3 min for each side and have increased to 5 min per day. Overall shoulder stability has definitely improved. Given the length of time I've had the shoulder issue, I can't say I'll be able completely resolve it but, these devices have absolutely helped. Will update in a few months. Also, I bought F2 (lighter version) after buying the A7 because I didn't have the shoulder strength for elevated positions. I'm able to use the F2 at horizontal and above positions. Hoping that as my strength/stability improves, I'll be able to use the A7 at horizontal+ positions.

I have had the A7 for six months now and have been using it to supplement my weightlifting training. My stability has greatly increased during overhead press, snatch, and clean and jerk. I had injured my rotator cuff years ago and had been treating with band work. Living with intermittent pain was just part of what i expected going forward. I saw ShoulderSphere at the Arnolds and eventually decided to act. I should have done so sooner. Six months and two competitions later, my shoulders feel great. I don't experience random pain like i used to and the owner, Win was incredibly helpful in guiding me as i determined which size to get, advising on workouts, and sharing information. My mistake was using the A7 too frequently and not giving myself enough recovery time. Since making that adjustment my shoulders have been rock solid. I didn't think i would ever get full use without pain. Thank you!

The A7 is seriously for advanced exercise! But the overall shoulder sphere concept is fantastic. My shoulders have never been stronger, and I avoided shoulder surgery for torn rotator.

Most expensive Hamster ball you will ever own.

Work your way up to this one, start with the F2.

Very helpful, you can start out slow - get the hang of it. The tracker takes some practice but is worth it for feedback about the intensity of the workout. Thanks for inventing this.

This is a fantastic invention. My shoulders feel much better now even after one week of trying to use it. It took me a while to get a good handle of this new sphere.