The ball is way too soft, making it only conditionally suitable for gymnastic exercises. Most exercises require quite a hard ball to run it properly and this is the great weakness of the product. My height is approximately 190cm ie a 75er Ball is ideally suited to all the exercises without great injury to execute. Problem of Togo SOFT is that you must get him to the desired hardness inflate very strong. By SOFT property he grows thereby however on its target size beyond which makes it unusable for exercises accordingly. I once the scope of the seam measured at an average hardness and came to almost 80cm diameter. In full force of the ball is a bit larger and therefore no longer be handled. But even if he would keep his size, would be the SOFT property there. But is also in the nature of things, for practice, you need a fairly firmly inflated ball and does not fit with SOFT. As Sitzball I can not use because it's like saying either too flabby or too large him. For my purposes, the concept SOFT + exercise ball is failed. Who wants to buy something useful to classics (like also of TOGU), which is cheaper and does what he should. I'll give my "Softie" probably.
