allows good feel to realize exercises or use passive way

As expected, the inner race of the bell well induces a slight passive contraction of the perineum. However, turnover remains a disturbing sensation rather than unpleasant. But the effect is the perineum must be loosened in order to remove the balls. Their weight is around 75gr and should rather moderately toned perineum. The balls are pretty important especially the second (3.2 to 3.6cm and 10cm long). Note that it is much harder to keep the first one ball with the second ball has the outside because the weight of the latter naturally leads to the release of the first. The contraction of the pelvic floor alone is not enough because it expels the first ball we must shrink by sucking internally. It is a movement that tries to teach midwives in rehabilitation not always successfully. With this configuration we frankly feel the difference between contraction by tightening or contraction aspiring internally.