Description:<br /><br />Reduce breathlessness and increase lung capacity by strength-training your respiratory muscles<br /><br />Power up your lungs with a daily workout from the comfort of your armchair<br /><br />Simply use it for about five minutes a day(equal to 30 times' breathing)<br /><br />Small and compact、 you can take it anywhere<br /><br />It can be used by almost anyone with no side effects<br /><br />Due to health and safety concerns、 this item is non-returnable<br /><br />Three adjustable step for your choice: weak、 medium and strong<br /><br />Material: ABS Plastic<br /><br />Color: Random<br /><br />Size: 4.33*1.18*1.96 inches/11*3*5 CM<br /><br />Package including: 1 x abdominal breathing  trainer