It works to improve the strength of your lungs and slim your waist, face, and reduce abdomen.
Reduce breathlessness and increase lung capacity by strength-training your respiratory muscles.
Simply use it for about five minutes a day(equal to 30 times' breathing).
Small and compact, you can take it anywhere.
It can be used by almost anyone with no side effects.
Item Type: Abdominal Breathing Exerciser
Size: As the picture shows
1 X Abdominal Breathing Exerciser