Increase Your Endurance: Helps you get better endurance, Breathing Exercise for Lungs is able to improve your breath for better feelings day by day.Effective and Useful: Strengthens your lung capacity and helps you adjust the abdominal muscles, Lung Exerciser Device makes it possible for you to exercise core muscles.Modifiable Resistances: Provides you with different resistances levels, Deep Breathing Lung Exerciser features adjustable resistances for you to easily change accordingly.Increase Body Performance: Breathing Trainer for Lungs makes an excellent exercise tool to build up your breathing and abdominal muscles, so you can strengthen overall performance.Lung Capacity Augmentation: Brings great help to decrease the accumulation resulted by body waste, Lung Endurance Trainer will reduce the buildup brought on by bodily waste. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin