High quality - The bobbin box is made of high-quality plastic to ensure that the bobbin is clean and hygienic, and it is not easy to be damaged for long-term use. The plastic double-sided pre-wound bobbin thread has a transparent plastic side that does not distort or absorb oil. Keep the bobs neatly placed - each bobbin is in a very organized, separate position with a durable case made of plastic, and a clear view makes it easy to see which color to choose from. The translucent bobbin case organizer makes it easy to view the spools you need, and the sewing threads of various colors meet your requirements for DIY sewing. Reusable - The thimble core is required for everyday sewing. You can sew beautiful design embroidery on your T-shirt or shirt to make your clothes look great; it can also create a do-it-yourself job, such as children's crafts, cross stitches, tassels or any party decorations. These threads will make your work simple and fun. Keep the bobbin clean - The bobbin and sewing thread set is equipped with a transparent storage box that holds each bobbin in a separate position, preventing thread tangles. The standard size is suitable for most sewing machines - Bobbin size: A, 15, can be used with a variety of sewing machines, such as Brother, Babylock, Janome, Kenmore, Singer and so on. Suitable for anyone who has just started using an embroidery machine or an embroidery machine. Specifications: Material: wax line, plastic Outer package size: 16*13*4cm Actual size: 14.1*11.6*2.5cm Weight: 179 g Package Included: 1* bobbin case 36* sewing threads