Breathing Exercise Device with Adjustable Resistance - Enhance Strength, Improve Endurance - For Increased Lung Capacity, Sleep & Physical Performance

Breathing and lung capacityincreased

I got first in a 200m this helped alot

Its pretty good, has great resistance but it can be abit to chuncky for small people

Perfect

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the product works as described but then again it doesn't mean it does anything. I believe the product itself is just placebo and a money grab. haven't used it too frequently but i don't think anything happens, but then again if you use it more often a change can be noticeable.

it is not making any benefit

Used it a couple of times. Good for practicing deep breathes. Item deep breathing. Can just be a bit chunky. I wouldnt wear it out for a jog

حتى الآن ماجربته بالهرولة لكن منتج مقبول