50 Colors and 50 Prewound Bobbins - 50 pieces, one per color, including red, green, yellow, etc. Colors are selected to cover common DIY sewing needs. Diameter about 0.2 mm. - Made for quick use in everyday sewing projects without needing to wind your own bobbins. Durable Polyester for Reliable Performance - Premium polyester thread for sturdiness and long-lasting use. - Resists breaking and fraying; smooth to touch and color-fast for lasting appearance across projects. Easy to Organize - Comes in a plastic storage box that keeps each bobbin separated and prevents tangling. - Easy to access and manage, reducing mess and saving time on embroidery work. Wide Compatibility - Fits most commercial and home embroidery and sewing machines. - Widely used in cloth and textile work; ideal for clothes repair and fabric handicrafts. Use Scenarios - Quick garment repairs: mend seams, hems, or small tears with matched color threads. - Embroidery and decorative stitching on clothing, accessories, or home textiles. - Fabric crafts and quilting projects that require organized, color-matched threads. This product provides a ready-to-use, color-varied, durable, and organized solution for sewing, embroidery, and fabric crafts, with broad machine compatibility and practical storage.