Clay poker chips are a real problem to ship. They are MUCH more fragile than casino chips. I've never had a Paul-son, Chipco, or BudJones chip damaged. But must have had 6-8 antique poker chips broken. The corrugated cardboard holders in a plain business envelope do not work for poker chips. I've found the bubble pack envelopes do as well as anything. It doesn't hurt to put extra protection around the chip INSIDE the envelope, though. Someone may still hit the envelope hard with a "hand stamp" <g>. The best is a hard cardboard box (like a small jewelry box) inside a padded envelope.

DonL