This item is a set of sewing tools: 25pcs plastic bobbins stored in a case and 126 pcs winding plate boards. The plastic bobbins is finer and smoother than the traditional metal bobbin. It is convenient to see the color of the wire wound using transparent bobbins. Besides, the standard size makes bobbins be suitable for most house hold sewing machines. The winding plate boards can help you to organize and untangle the remaining threads, which will up your work. Features - Color: As shown. - Material: Plastic. - Size: 2 x 2 x 1.1 cm (Bobbins) 12 x 9 cm (Storage Case) 4 x 3.7 x 0.2cm (Winding Plate Board). - It is a set of durable and practical, helpful tools for home use. - The bobbins is suitable for all standard household sewing machines like Bernina, Pfaff, and Juki. Etc. - Winding plate board will help you to organize and untangle the remaining threads, let you convenient to use, store needle craft easily, no more messy loose threads around. - Preventing threads getting twined, easy and convenient for classifying. - Use it when doing cross stitch, needlecraft, embroidery, DIY craft, or other sewing work. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand