Feature: 1. Pipeline bending resistance, not affected by the patient's posture, easy to clean, durable. 2. Can effectively prevent crossed infection and keep the sphere clean and hygienic. 3. The trainer is used for inhalation (breathing) exercises and measurements, good for increasing pulmonary ventilation. 4. Bright color sphere, integrate into color psychology, stimulate patient training. 5. Convenient double stuck connector designs, tight connection and not easy to fall off. Specification: Condition: 100% Brand New Item Type: Breathing Trainer Material: PVC Package List: 1 x Breathing Trainer 1 x Tube 1 x Manual