Long Breath Life (Blowback for Health and Beauty Training) Level 3 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 Exhalation force guideline: A level that should be cleared by general women from upper elementary school students Accessories: Training method manual