Product code: Exercise good O2 Trainer
Bas Rutten O2 Trainer - Official Workout Device good for Respiratory Training and Lung Muscle Fitness - Portable Breathing Mouthpiece for High Altitude and Power Training (Green).
Bas Rutten O2 Trainer - Official Workout Device good for Respiratory Training and Lung Muscle Fitness - Portable Breathing Mouthpiece for High Altitude and Power Training (Green).