This is a new 2-in-1 (for both inhalation and exhalation) breathing trainer.Lightweight, compact, and easy to use, it is portable and can be taken anywhere. 1 to 2 workouts per day will strengthen the muscles involved in breathing, and you will see results in as little as 4 weeks.
Black (for top athletes) ]
Super heavy duty
Includes: nose clip, strap, connector, and instruction manual
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