Most, I am pleased, however, that I at this ball very quickly and easily the required air - can be switched on and leave, and thus can determine the hardness of the ball itself if necessary - by means of an ingenious plug.
I have taken the ball into the holiday and very small worn it in his pocket.
Inflated on the plane and used as a back support. On the beach towel and sunbathing - with moderate pressure - as a headrest when reading. And do not forget - for my back exercises course.
In the water to play and and and ..........