Colors: The embroidery floss set includes 13 skeins of black (color number 310) and 13 skeins of white (color number B5200) embroidery floss, with 10 plastic floss bobbins. Material: Our embroidery floss is made of soft, smooth polyester cotton that is more environmentally friendly, flexible, more durable, and not easy to break or fade. You don't have to worry about the floss pilling or falling apart; it can be used for a long time. Size: Each embroidery floss is approximately 8 meters long. Each embroidery thread consists of six strands, and each strand is formed by two thinner threads intertwined. This structure makes the embroidery thread more firm and not easy to break. Easy to use: You just need to find the thread head to pull it out without having to unpack the wrapping paper to prevent mess and winding, and then wind the floss around the floss bobbins to keep them neat and tidy. Wide range of uses: Black embroidery thread can be used to make friendship bracelets, children's crafts, cross-stitch projects, tassels, or decorations for all holidays, DIY projects. You can use them to make a beautiful gift for your friends or family.