Each poster is printed with multicolor, water-based inkjet printing technique that yields brilliant prints to brighten up any room. Paper thickness: 10. 3 mil (0. 26 mm). Paper weight: 189 g/m². Opacity: 94%. ISO brightness: 104%. Paper is sourced from Japan. Disclaimer: The size of paper posters fulfilled in our partner facility in Japan may vary up to 0. 4″ (1 cm). This product is made on demand.  No minimums.