Great idea - but what is it?

I find this product a mystery for a few reasons. The language on the product seems to indicate this is for users with flat feet, yet I need it to support high arches and reduce stress. So the name of the product is "Support Sleeves", yet the text is about "Flat Foot Support Cushions". So what is it? Also - what's up with the two extra pads. I didn't even realize they had a hard plastic sleeve to protect a glue strip. So what is this for? No instructions. Do I stick this down as a permanent insert in a pair of shoes, or stick to the bottom of my feet as shown on the box. If I do that, how many uses should I expect before the adhesive wears off? Lastly, the sleeve curls badly every time I try to pull as sock over it - so it's kind of difficult to use. Would appreciate a response from the company.

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