I received a chip in the mail (posted it on here) that arrived in 4 pieces. It was sent inside one of these things, in a regular envelope. The seller assured me that he has never had that happen before, and I believe him. (and I received a replacement) While it seems that it is unlikely that chips will arrive damaged using this method, it is obviously possible, as I am sure anything is possible. A bublle mailer with this stuff would probably work very well.