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Use the operating instructions:
Adjust the pressure value to the initial value by 20n; tighten the pressure value adjustment switch, adjust the hand-held pressure airbag and pressure value adjustment switch; make the measurement pointer stable at the initial value of 20n measurement position. Please use the measurement of the balloon head placed in the vagina, by contraction of the vaginal ring and pelvic muscles to observe the vaginal exercise measurement instrument dial numerical changes. Vaginal exercise stage reference value: 60n or less – very poor (must strengthen the exercise, it is recommended to use the treatment of retractable ball to exercise); 60 ~ 80n – poor (need to strengthen the exercise, it is recommended to use Mature passionate type of ball to exercise); 80 ~ 120n – moderate (need moderate exercise, it is recommended to use the girls to reduce the amount of compact ball training); 120 ~ 160n – better (recommended the use of girls to reduce the size of the ball to further enhance the training); 160n or above – very good (you can use the girls to reduce the amount of compact ball to exercise).