Dried corn husks are the most commonly used tamal wrapper. Most of the corn husks found in the U.S. are smaller than the husks sold in Mexico. About seven years ago a new "style" husk was introduced to the U.S. market. This style is called "enconchada" which refers to the "conch shell shape" of the stacked husks.
The enconchada husks are of a higher quality and come in at least three sizes varying from 7" - 9". They are even available packed in water for immediate use. Normally the husks must be weighted down in water and soaked for at least 10 minutes to make them pliable and ready for use.