- Materials: 100% acrylic, 100% polyester - Usage: Crafting cotton Thank you for viewing. This is crafting cotton that I found while cleaning out my parents' house. The 100% acrylic one has only been used a little out of 500g, and the 100% polyester one seems to have a little less than half of the original 500g remaining. * From what I can see through the bag, there don't appear to be any stains or dirt, but I haven't taken everything out and checked it carefully. * Storage period is unknown. It's likely been stored for a long time. * The bags are a little dirty. If you understand the above points and are still interested, please consider purchasing. I will pack using recycled plastic bags and cardboard boxes that I have at home. I hope it can be delivered to someone who can use it. ^_^