Of all genius simply. Maybe, therefore the invention of fitball (fit is making healthy, ball is a ball) is compared to the invention of wheel. Engaging in a fitball give an unique opportunity to affect muscles of back and backbone. But not only. A fitness did not yet know such exercises, that would promote tone of muscles simultaneously, improved their mutual co-ordination, developed an equilibrium, improving work of vestibular vehicle, and in addition worked on relief at once total-body. It is not got us tired to repeat, that motion is life. So, this "merry" varicoloured inflatable trainer will help to return the lost mobility that all of us possessed in childhood you, will bring back to life your muscles and will present valuable life.