Drug-Free Standalone Therapy Mucus Remover - Apply OPEP, the world's trusted remedy. Continued use can help relieve phlegm and promote a cough for better mucus removal. EFFECTIVE FOR MANY RESPIRATORY DISORDERS - This lung cleanser is an invaluable toolfor those with respiratory conditions, treating asthma, atelectasis, bronchitis, cystic fibrosis and more. Suitable for most users - Our breathing aids come with three stainless steel ball bearings so you can adjust to minimum or maximum positivepressure based on your lung capacity, age and current health. QUICK AND EASY TO USE - Our slime removal device is designed to be simple, requires no refills, no batteries, and is easy to use and clean. Use for 5-10 minutes once or twice a day. Designedto Help Train Your Lungs - This lung exercise device promotes gas exchange, improves lung strength, reduces breathlessness and improves quality of life. Shipment Quantity: 1 Piece Package Contents: Only the above package contents, excluding other products. Size: 10*4cm (Reminder: The size is measured by hand, please allow 1-2 cm measurement error) color: blue (Due to different monitors and lighting effects, the actual color of the product may be slightly different from the picture color.) WUZHOU