Portable Lung Exerciser Expander Device Lung Capacity Abdominal Breathing Exercise Trainer Adjustable Resistance with

Feature: 1. Endurance Improvement: Breathing muscle trainer, improve aerobic exercise endurance, and enhance muscle endurance. 2. Increase Lung Capacity: This lung exercise dilator can help you adjust your breathing and increase vital capacity during exercise. 3. Improve Physical Function: This breathing trainer can help improve shortness of breath and palpitations, and improve physical function. 4. Adjustable Resistance: This lung capacity training device can adjust the resistance according to the needs, and it is easy to use. 5. Portable: This breathing training device is easy to carry, compact, lightweight, easy to clean, and no burden for sports. Specification: Item Type: Lung Exerciser Expander Device Material: Silicone, ABS Gross Weight: 75g 2.6oz Product Size: Approx.5 x 10cm 2.0 x 3.9in . Package List: 1 x Lung Function Breathing Trainer