I guess 5 people in this thread, now 6 is a huge majority.
So, at the expense of sounding repetitive, go to
Cigarmony and purchase
an Otterbox with "The Puck". You will find a selection of sizes, go with the 25 if 20 is what you are looking for.
I have several sizes. Recently I traveled from San Diego to Cape Town South Africa, 24 hours flying time, 36 hours door to door. In
5 1/2 weeks I never added distilled water to "The Puck" and the RH never wavered from 65%
The Otterbox is not only a good traveling container, it's arguably the best small humidor you can buy. For those in the market for a small
humidor, say a 50 count, this, IMO, is the way to go.
Brian