Model: A109

Installation is quick and easy with no complicated process required

26 Yards / Inner Length 15

White Blue

muscles can only withstand 60-70 joules per second

Weight Loss Whistle, Abdominal Respirator Color:Blue Model: A109Features: 1. Reduce breathing difficulties and increase vital capacity by exercising breathing muscles. 2. Work out in a comfortable armchair every day to increase lung strength. 3. Just use it for about five minutes a day (equal to 30 times "breathing"). 4. Small size and compact structure, you can use it anywhere. 5. Can be used by almost anyone, without any side effects. 6. Due to hygiene and safety considerations, this item cannot be returned. 7.