AMAZON''S #1 RATED BREATHING FITNESS TRAINER! - IMPROVES SHORTNESS OF BREATH & ENDURANCE - THE BEST 7 MINUTE BREATHING EXERCISE FOR ATHLETES & COPD PATIENTS.
USED BY NAVY SEALS! - 100% ADJUSTABLE AIR-FLOW VALVE PROVIDES ALL LEVELS OF INHALING AND EXHALING RESISTANCE TO FIT ANYONE''S NEEDS. - IT IS THE MOST COMPACT (4''), PORTABLE, DURABLE AND EASIEST TO USE BREATHING FITNESS TRAINER. (100% DRUG FREE)
FLEXIBLE MEDICAL GRADE SILICONE MOUTHPIECE PROVIDES THE MOST COMFORTABLE FIT AND BEST SEAL.- FITS ALL SIZE MOUTHS COMFORTABLY - (SIMPLE EXERCISE INSTRUCTIONS ARE INCLUDED)
''MADE IN USA'' - RISK FREE TRIAL GUARANTEE! - TRY IT FOR UP TO 60 DAYS! ''IF FOR ANY REASON YOU''RE NOT SATISFIED, YOU CAN RETURN IT FOR A FULL REFUND!''. (FOR MORE INFORMATION VISIT WWW.EXPAND-A-LUNG.COM)
SELECTED THE #1 CHOICE OF THE L.A.TIMES REVIEW! RANKED ABOVE ALL OTHER RESPIRATORY FITNESS TRAINERS AND ELEVATION TRAINING MASKS! - FEATURED IN THE FOLLOWING MAGAZINES: ''RUNNER''S WORLD'', ''TRIATHLETE'', ''TRIATHLON CANADA'', ''AUSTRALIAN TRIATHLON & MULTISPORTS'', ''VELO NEWS CYCLING'', ''FREESURF HAWAII'', ''SKIN DIVER'', ''HAWAII SKINDIVER'', ''INTERNATIONAL FREEDIVING'', ''THE BOX (CROSSFIT)'', ''BLACK BELT MARTIAL ARTS''. ''INTERNATIONAL KICKBOXER''.

Technical Details

Width : 0.75 cm
Height : 0.45 cm

Product Details

ASIN : B00MEQNSK2