Abdominal breathing exerciser is a breakthrough product for respiratory fitness training， works to improve the strength of your lungs and slim your waist， face， and reduce abdomen.Description:Reduce breathlessness and increase lung capacity by strength-training your respiratory musclesPower up your lungs with a daily workout from the comfort of your armchairSimply use it for about five minutes a day(equal to 30 times' breathing)Small and compact， you can take it anywhereIt can be used by almost anyone with no side effectsDue to health and safety concerns， this item is non-returnableThree adjustable step for your choice: weak， medium and strongPackage including: 1 x abdominal breathing trainer Note:The color is just for reference only. It may slightly different from real item.