I was stocking this for my own use, but I'm selling it because I don't have time to use it. This is commercially available cotton thread (from a bird shop) that has been scoured and then dyed with sulfur dyes. After dyeing, it has been rinsed, color-fixed, and treated with scented fabric softener. There is a smell of cotton thread, dye, and fabric softener. There is a possibility that impurities from the cotton thread remain, and the thread may snag. Approximately 40 grams per skein. The length of the thread before bleaching (unbleached thread) is about 370m for fine thread. Please understand that the colors may differ from the screen. This is a product made by an amateur who is studying dyeing. The color may bleed at first, so there is a possibility that the dye will transfer to the fabric or your fingers. If you are concerned, please wash it separately with a neutral detergent. Please refrain from using detergents containing bleach, such as laundry detergent. Returns and exchanges are not accepted. #OronaminU Dyed Thread #Sashiko #Sashiko Thread