Can blow and breathe: The four-ball device is composed of a base and a central part, divided into four chambers, containing four balls of different colors, and a mouthpiece tube, which has two functions of inhalation and exhalation;
Innovative design: The shape conforms to the ergonomic design, the convenient connector design, the connection is tight and not easy to fall off, and it is strong and not easy to shake;
Suitable for the crowd: patients who have undergone abdominal or thoracic surgery and other people who need to improve lung respiratory function;
Safe and comfortable-The mouthpiece is made of safe and comfortable PE material, detachable for cleaning and disinfection, durable, compact and easy to carry.
Detailed A detailed manual is provided to help you better use the product, improve lung breathing ability and achieve optimal vital capacity