Silicone Palm Chest Percussion Cup, Chest Physical Aid Therapy Cup, Mucus Flutter Removal Device, Percussion Treatment for Mucus, Sputum, and Expectoration Problem(4.3 * 3.5 Inch for Adult) (Blue)

Silicone Palm Chest Percussion Cup, Chest Physical Aid Therapy Cup, Mucus Flutter Removal Device, Percussion Treatment for Mucus, Sputum, and Expectoration Problem(4.3 * 3.5 Inch for Adult) (Blue)

Giyosk Breathing Exercise Device for Lungs, Lung Expansion and Mucus Relief Device, Portable Expiratory Breathing Exerciser with A Set of Accessories, Breathing Trainer for Lung Cleanse(Green)

Mucus Clearance Device with 16/18/19MM Stainless Steel Balls, Flutter Valve Clearing Device and Breathing Muscle Exercising Device for Strenthing, GY Design Provided