Questions: Building the Foundation for Critical Thinking - Classroom Poster 12" x 18" Poster on High Quality heavy 80lb satin cover paper - durable and can stand up to all kinds of abuse and it won't pucker and wrinkle like others do. Proudly Made in the U.S.A. PosterEnvy EXCLUSIVE! That means you won't find it anywhere else in the world! Proudly Made in the U.S.A.