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BREATHING EXERCISE DEVICE - Perfect for sportsperson and athletes who wants to improve performance, people who wants to improve wellbeing.It is recommended to use for 5-10 minutes a day,start training with 3-5 groups every day, and then increase intensity according to your own situation.
PERSONAL POCKET BREATHING TRAINING DEVICE - Weighs only 1 oz/28.8g.Compact design, easy to carry and exercises when and where you want.
