Please read the self-introduction and description carefully before purchasing. See the images for details. These items have been stored since my parents' sewing factory days. They were kept in a tea box, so there is some storage odor. The material is thin cotton, dark navy blue (almost black) x white. The title size is the guaranteed dimension, and since these are remnants, they are not perfectly rectangular. Please use them for various craft materials. I haven't checked each piece individually, so there is a possibility that some have seams. There are wrinkles and fold marks from storage. Accurate color reproduction is not possible. Also, I am unfamiliar with the definition of fabric thickness and color names, and I do not have detailed product knowledge. Please purchase if you can make a judgment based on the images. There is a cat. There may be cat hair attached, so please be aware of this.