Features: Package contains 38Pieces Sewing Machine Bobbin Threads. Sufficient quantity to meet your quilting and sewing need. Unlock your creative potential with our Pre-Wound Bobbins Set, suit for all sewing and embroidery project. Each clear bobbin size: 0.45x0.79inches (1.16x2cm), Inner Diamter 0.24inch (6mm). Fit on most household sewing machine, embroidery machine, small sewing machine and more. These bobbins and sewing threads set comes with clear storage case which can keep each bobbin in a separated compartment, preventing the threads from getting tangles. Great for craft enthusiasts, embroidery beginner, experienced hobbyist. Whether knitting sweater, embroidering a delicate pattern, or crafting unique scarf, our bobbin set caters to all your artistic aspirations. Holiday present for you wife or grandmother who likes sewing so much. Widely used for quilting, clothing making, dressmaking, sewing curtain, crafting baby clothing, hangbag, embroidery, or for clothes repair project. Specifications: Color: Colorful, White; Black Component: Thread Thread Bobbins Outer Diameter: Approximately. 20mm/0.79in Thread Bobbins Inner Diamter: Approximately. 6mm/0.24in Case Size: Approximately. 14.5x11.8x2.50cm/5.67x4.65x0.98in Weight: Approximately. 186g Package Includes: 38Pieces Sewing Thread Bobbins 1Piece Clear Storage Case note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color