I need in sport often forearms and have the Thera Ball
-at least subjectively already made greater progress.
The material is very good and can be deformed quite far, even
at the Blue harder.
It is very pleasant that the rubber material is almost odorless.
The fact that the ball is "slightly tacky" I think, however, for very
an understatement. If you want the ball, wash sometimes
(Lint gradezu sucked) should then equal Babypuder
or something about it tilt.
Otherwise the thing will remain almost at the ceiling sticking).
Another minus I have not discovered.
-> Buy recommendation
