Material:Body(PS),ball(PP),Tube(PE),mouth pieces(PP)

Size:3000cc/5000cc

Packing :1set/box,50sets/ctn,74x37x35cm

Description:

1. The improvement of lung function can be accurately measured

2. Effective training,enhance the training enthusiasm of patients

3. Simulate natural deep breathing,more effective

4. Reduce pain during exercise

5. Reduce nursing workload