Cocoon bobbins are used on schiffli embroidery & multi-needle lockstitch quilting machines equiped with shuttles. Made of cotton, poly/poly core spun, spun polyester, continuous filament nylon 6.6 and other specialty products such as aramid threads. We offer a wide range of sizes and colours for various applications such as:mattress,quilted lining, sleeping bags,fashion quilting, protective clothing,filters,horse covers,automotive,embroidery. Size: P6, P7, P9, P10, P11 Poly-Poly core spun thread: 45/2, 48/2, 53/2