What are some of the stiffest types of playing cards?

preferably ones that you can find easily

What are some of the stiffest types of playing cards?
Personally I think the KEM cards are the stiffest but Dal ****** are competitive for the title. You'll definitely want a fully plastic playing card. Your major options are: Kem, Dal *****, Graphica, Gemaco and Copaq. Copaqs are definitely not the stiffest and unfortunately I don't have personal experience with Graphica and Gemaco.





Kem:


http://holdempokerchips.com/products.asp...





Dal *****:


http://holdempokerchips.com/products.asp...





All plastic cards:


http://holdempokerchips.com/cardcats.asp