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

جميل

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.

حتى الآن ماجربته بالهرولة لكن منتج مقبول

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

it is not making any benefit