Postcards include full color, double sided printing on 16pt cardstock. The following finishes are available for postcards:
Glossy UV (this is a shiny finish that can NOT be written on)
Matte (this is a flat, very subtle finish that CAN be written on with most writing instruments)
Uncoated (this has no finish at all and CAN be written on)
Glossy UV/Uncoated (the front of the postcard has a shiny finish that can NOT be written on, and the matte has a flat, subtle finish that CAN be written on).
Posters come standard with full color printing on one side, and are available on 100# Gloss Text Paper. This paper is thicker than printer paper and has a subtle shine to it (standard tour and band merch poster material).
If you're looking for a specific paper type or finish, please send the specs to a sales rep.