Franks Deals&reg; Abdominal Breathing Compact Exerciser Trainer Slim Slimming Waist & Face Fitness Loss Weight For Man and Lady Reduce breathlessness and increase lung capacity by strength-training your respiratory muscles,Great for athletes and those who suffer from shortness of breath 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 Three adjustable step for your choice: weak, medium and strong