Classic Semi-Glossy Paper Poster 60x90 cm / 24x36″ High-quality, lighter-weight, classic semi-glossy paper: Paper Finishing: Semi-glossy, enhances colors with a subtle shine. Paper Weight: 170 gsm (65 lb), thickness: 0.19 mm (7.5 mils), sturdy and durable. Sustainable Paper: FSC-certified or equivalent for sustainability. Available Sizes: 29 sizes in inches (US&CA) and cms (rest of the world).