Off-white, matte, uncoated, 250gsm archival museum-quality paper.
Pine frames are 20-25mm thick and 10-14mm wide, and available in black, white, natural wood, and dark brown wood. 
Shatterproof, transparent plexiglass.
Poster and frame are packed separately in one box, for easy assembly by you.  Hanging hardware is included.

Paper sizes may vary slightly by region. For the US and Canada, the measurement is in inches, while for the rest of the world, it is in centimeters.