Long Breath Life (Blowback for Health and Beauty Training) Trial Set 3 pieces 1 box (3 pieces)

You can choose from three levels of blowing power to suit the user's breathing function. Quantity: 1 box (3 pieces) Size: 90 x 80 x 150 mm Trial set contents: Level 0, 1, 2 x 1 each Exhalation force guideline: Level 0: equivalent to wiping and shaking a piece of tissue paper, Level 1: equivalent to speaking a normal conversation in a clear voice, Level 2: equivalent to blowing out a candle flame. Accessories: Training method manual