Compact, high quality break-resistant plastic, 3-ball inhaling breath measurement system;3 chambers for differing inhalation rates - from 600cc/sec to 1200 cc/ sec;Deep Breathing Exerciser for comprehensive respiratory fitness;Helps achieve optimum lung capacity and restoring disrupted breathing patterns;COLORS MAY VARY;Complete Instructions Provided

• HealthAndYoga Deep Breathing Exerciser | Breath Exercise Measurement System

HealthAndYoga Deep Breathing Exerciser | Breath Exercise Measurement SystemSoulGenie