CULTURE POSTERS IS A ONE STOP SHOP FOR ALL YOU POP CULTURE POSTERS AND PRINTS , GREAT FOR COLLEGE DORM ROOMS OR BEDROOM DECORATION Printed on Satin finish 80# cover stock – 220 GSMMatte finish AND 1.5 GLOSS FINISH 18″ x 24″ is the cornerstone of cultureposters.com – it’s the first size we started out with and is, for that reason, our most popular size to date.