GnG's Deep Breathing Exerciser | Breath Exercise Measurement System

Description

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