Features: 1Improve Breathing: Lung exerciser device works by creating resistance when you breathe, which can effectively improving your respiratory muscle strength. 2Multifunction: Breathing lung exerciser can reduce breathing difficulties and improve exercise performance, effectively improve endurance and shortness of breath. 3Detachable Cleansing: Breathing lung exerciser designed with removable parts, you can easily take them apart, wash and dry them, which is safe and cleanse. 4Widely Use: Breathing lung exerciser can effectively improve lung function and prevent respiratory diseases, suitable for the elderly, smokers, people with asthma and other respiratory diseases. 5Acrylic Silicone: Handheld breathing exerciser is made of acrylic and silicone, safe and sturdy, suitable for daily use, which is small in size for easy to carry. Item Type: Breathing Exerciser Material: Medical Acrylic, Silicone Installation Length: Approx. 15cm / 5.9in Package Included: 1 x Breathing Exerciser 1 x Mouth Valve&nbsp 6 x Filter Cotton&nbsp 1 x Lanyard&nbsp 1 x Storage Bag 1 x Manual&nbsp 1 x Nose Clip