I also know diesesn Ball recently learned in rehab and it's so much fun .. The criticized by some smell is due to the material and has evaporated quite quickly. Whoever adheres to the operating instructions and the ball is first pumped up only to about 80% so that the time to "de-wrinkling" what prevents Matrialbrüchjen. Unfortunately for inflating always a corresponding pump must be purchased separately. this is a pretty Pfriemelei after inflation to get the plug in the valve opening because here constantly flowing air. Therefore, the correct inflation quite a bit more pressure so give this true when the plug is seated. If he sits, he sits firmly and does not dissolve unintentionally. Drain used for air you have the plug but a bit awkward to remove which can damage carelessness quickly denm ball.
The ball sports equipment is fun and can be a variety of exercises with and without eg the Theraband to what .. Who wants or needs to do for his back, is hereby right advice .. Appropriate literature helps to good results.