Breathing exerciser from eBay - 99p - is it worth it?

What is it? How does it work? Is it actually going to work???
If you want one follow the link: -
www.ebay.co.uk...
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[@AandP4dummieslikeme]

I just bought one off Ebay so I am curious to see if it will help me at all. I will use it the next time I go to the gym. Thanks for showing me how to use it. All of my instructions were in Korean and I was completely lost as to how to use it :-)

[@eh2179]

I bought one from China, it came without instructions. Had to search KZbin to see if anyone else knew how to use it lol! Thought it had to pull back inwards on breathing in, and it didn’t do that so was about to ask for my money back. Found you and mother lady. Seems you knew better than her even as to what you have to do. Thanks for sharing. How have you go on with it? Any slimmer?

[@SisterMidnite]

Wondering if any of you that have tried it can tell me if it forces one to breathe through the nose. Mom has Dementia and COPD and I'm having trouble getting her to breathe through her nose where heAs in with it in your mouth - you can't breathe in only out. This is what I am looking for and all the expensive ones don't do this. Thanks in advance.

[@josieposie6502]

you seem like a really nice person!

[@tijenclark]

How did you go with this? I'm curious.

[@DeNice838]

so sweet you explaned... tell use how it worked... ?

[@timnoonan671]

Thanks for the review!

[@brandiwoodman5692]

did it work?

[@Lisa-qi6in]

You put the pink end in your mouth not the white according to the read on ebay description.

[@carlmirzz1]

I just bought me one in eBay .. hopefully works

[@boblamhk]

I made one by cutting small holds on plastic water bottle... for free...

[@JoVeda_xo]

Whistles

[@JoVeda_xo]

Feels like i m using a whistle