DescriptionAre you looking for a professional, yet affordable respiratoryexerciser? Are you in search of a sturdy, trustworthy tool that can domultiple jobs at once? If yes, look no further! Our professionalrespiratory exerciser must meet you needs. It is one of the best choicesfor you.Features-Color: White-Material: PE-Size: 12.5x12.5x7cm/4.91x4.91x2.75in - Bite mouth is made of safe and comfortable material, combined with ergonomic design. - Pipeline bending resistance, not affected by the patient's posture, easy to clean, durable. - Bright color sphere, integrate into color psychology, patient training. - Convenient connector design, tight connection is not easy to fall off. - Compact size makes it convenient and easy for you to carry.