Bubble Brain 15cm x 20cm Poster made on our lighter-weight, uncoated classic matte paper. The perfect option to stand the test of time. Features: The 170 gsm/ 65 lb paper weight provides a sturdy base, while the smooth white finish accentuates the colors and details. We use FSC-certified paper or equivalent certifications depending on regional availability. It’s better for the people and the planet. Each poster is shipped in robust packaging, ensuring it arrives safe and secure. Paper sizes may vary slightly by region. For the US and Canada, the measurement is in inches, while for the rest of the world, it is in centimeters. It is printed and shipped on demand. No minimums are required.