描述
- Apply auxiliary fluid before use, get into working order, fill up with gas, let the muscles fill up slowly, ready to inflate and deflate.
- The airbag expands slowly until it is comfortable, the safety factor can reach 10 cm, larger than the fist.
- High quality silica gel has no unpleasant smell.
- Tip: The exercise should be progressive and progressive, remember not to become more than your own ability to carry the ball.
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