Made with museum-grade premium matte paper (175gsm fine art paper), each poster is printed with top-tier pigmented archival inks for a stunning end result. 12″ x 18″Width, in12.00Length, in18.00.: 175 gsm fine art paper.: One size only.: Matte finish.: For indoor use.: NOTE: Due to the production process of these posters, please allow for slight size deviations with a tolerance +/- 1/16".