I received my product quickly, which was great. They are super thick and sturdy, and the ziploc closure is quite secure. Would be a good place to keep your money and other (limited) flat things you want to keep dry; would probably hold some cash, sea pass and passport without problem.

My package came with 6 and 9" attachment pieces (it stated upon request by users). I think the 9" is too long, BUT suspect it was a plus because the encasements themselves are so large. We're cruising RCI and could have placed three luggage tags (side by side) into these babies. Not a big deal I suppose. And perhaps I'll use them again on another line with larger tags someday. :) But the 9" attachments accommodate the big ol' tag holders much easier than that 6" ones, which are a struggle to finagle through when affixing to the luggage.

All in all, they'll certainly suit the intended purposes. I'm not going to attach until post-flight. While the attachment mechanism seems quite sturdy, It seems if stretched with enough force, it could snap. Also seems that a sharp object (which I don't know what that would be at an airport, lol!) could cut it with relative ease.

I simply plan to slip them in with our cruise contract docs and affix them the morning of the cruise. :)

Bottom line, glad I bought 'em. Would do so again.