Compact, high quality break-resistant plastic, 3-ball inhaling breath measurement system

Solid, non-shaky Construction; Removal bottom for thorough cleaning and hygiene maintenance

Deep Breathing Exerciser for comprehensive respiratory fitness - 3 chambers for differing inhalation rates from 600cc/sec to 1200 cc/ sec

Helps achieve optimum lung capacity and restoring disrupted breathing patterns

Complete Instructions Provided; See video in images alongside; Ball Colors may vary