Package and Size: You will receive 50pcs black paper bobbins. Size: 8.9cm/ 3.5 inch wide 6.4cm/2.52 inch long 0.4mm thick. Enough quantity to meet your daily use and replacement needs as well as your sharing needs. Make your embroidery sewing much easier Paper Wire Winding Boards: Made of quality paper durable and not easy to deformation not only can help to holding thread skein keep the thread neat and clean in case various threads will be in chaos but can also be used with other organizers to save space. Thread Organizer: These bobbins can help you organize various threads such as embroidery thread yarn string skeined thread waxed thread etc. for various sewing craft projects. They are an essential gadget help you to manage and use a variety of wire efficiently Easy to Use: This thread cards can be wrapped with different colored threads and wrapped with a floss winder. Prevent them from knotting very convenient to classify. Works well with different kinds of fabric ribbons silk satin ribbon Christmas ribbon plaid ribbon etc. Application: After each stitch embroidery needlework sewing DIY crafts and other projects these bobbins can organize and store the scattered threads for easy use next time helping to keep the thread neat. Also great for hanging tags gift cards bookmarks etc.