I used 6x8" paperboard mailers and have had one issue where a buyer had
to pay a fee to their post office to receive their item ($3.49, so
probably marked as first class). It ended up being my first negative
feedback. So your results may vary. I woul...
I would recommend against using this service until they work out the
kinks. I used the eBay branded paperboard mailers
(https://www.ebay.com/itm/PRE-ORDER-6-x-8-Paperboard-Mailjacket-Envelope-No-padding/254808890842?hash=item3b53cb1dda:g:yJ8AAOSwHXxg...
