It's about the size of a sandwich bag, small enough to slip into your purse or backpack. How could this possibly work? We'll get to that in a moment. First, I want to point out the particularly enjoyable artwork on this packaging. It shows an man suffering from much anxiety as he is driving, because he has got to go! He ends up in the hospital with a broken leg since he was so distractedly hurried. (The marketing people for this portable toilet must know my mom, who is infamous in my family for her worst-case-scenario thinking.)

If only he had a portable mini toilet. You might find yourself saying the same thing in DC. OK, now back to how this thing works. Here are the instructions:

"1) Open the fastener. 2) For use by women, fold over the opening and
press firmly against skin. 3) Close the fastener after use. 4) Place in
the plastic bag which is provided." It then warns you not to ingest the polymer absorbent, which is supposed to solidify your liquids. 

There are indeed some grains of something in the portable toilet (pictured on the right). The item on the left is the disposable bag it comes with.

So, there you go (no pun intended). If I were a good product reviewer, I would test this thing out for you. But somehow I didn't get around to it. If you try it, let me know how it works out for you. Japanese dollar store saves the day again?