How do I send collectable cards (how to pack them) after I sell them on ebay?

Question

I want to sell yugioh cards.

Answer 1

Put the card in a hard plastic card protector, called a Top Loader, and ship it in a bubble-wrapped letter.

That should be good enough.

Answer 2

You just put them either in a box and mail it or put them in card protectors and in a bubble mailer.