Bobbins are one of the most important factors in producing high quality embroidery. Using Madeira
pre-wound bobbins and bobbin threads ensures that there will be no extra bulk added by the under-thread
as it is being sewn into the design. A strong and lint free thread is preferable as this will reduce bobbin thread breaks.
Style ‘L’ and ‘M’ are the most common sizes for industrial pre-wound bobbins.
Style ‘A’ is the same diameter as the ‘L’ Style, but slightly taller and is used on home machines.