It is on this side. Some postal workers insist that you have to declare a value on everything but if it is slim enough to fit through the tool they use, it doesn't. A bubble mailer with packs of cards stacked in about 20-25 cards per stack will fitand therefore does not need it. Here, if you declare a value, the cost is more than 3 times the non-declared cost.
Find the postie who doesn't.
Bruno
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Check my Profile page to see my 2023 Goals and my Lists of sets near completion (5 cards or less) or sets getting close (less than 100 cards missing and 75% complete).
https://www.tcdb.com/Forum.cfm/Page/B/ID/0/?MODE=VIEW&ThreadID=25745&C=0