Introducing the new Super Mario Brothers pillow cases featuring beloved characters like Mario, Luigi, Bowser, Princess, Toad, and Yoshi! I believe it is polyester, but not sure, no tag on opened item. With a blue background color, these square pillow cases are adorned with smooth patterns of your favorite Nintendo characters. Measuring 40 x 40 cm, they are perfect for kids' rooms with a video game theme. Upgrade your bedroom decor with these officially licensed Super Mario pillow cases for a fun and colorful touch. I have 7 total - 6 sealed in packaging, 1 not in packaging; message me to specify if you want in packaging or not.