It looks to me not significantly different in concept from the standard Canadian Army Field Dressings that we were issued back when I was a soldier. It's a sterile dressing that's attached to some sort of roller bandage. I don't see how or why it's a "major innovation" from any of the descriptions I can find, except that it appears to weigh much less (about a fifth of an ounce?).<br>Assuming it's not outrageously expensive and not ridiculously bulky (I doubt it's the latter, somehow) I would happily pick up a couple and throw them in my first aid kit; if space permits, putting one with a PSK would be a much better idea than the ubiquitous bandaids and aspirin tablets that so many seem to prefer.<br>If I read correctly, North American Rescue Products (
www.narescue.com) sells a pack of 100 of these for $6.75 - how could you go wrong? Unfortunately, NARescue has a $10 surcharge for any order under $100. :-( <br>The only thing I would be cautious about is that, as it's an elastic "ACE type" bandage, it would be very easy to apply too much pressure and turn a pressure bandage into a tourniquet. <br>If I can find an alternative source for them where the price is right, I would love to pick up a box for my own first aid kit.<br>Saying it has "four uses in one" is just marketing hype, though. I've no idea what the difference between a "primary dressing" and a "secondary dressing" is, for one thing; a dressing without a way to apply pressure is useless; and hardly any medical organizations endorse the use of a tourniquet nowadays except in very rare cases as a last resort.