Madeira Monofil (monofilament) is a heavyweight, clear, transparent sewing thread. You can use this thread when quilting, serging, attaching trims (pearls, ribbons, etc.), or when you need invisible seams. Madeira's Monofil Thread is made of high-tensile nylon, which is ideal for medium-weight fabrics. Each spool contains 550 yards of 40-weight thread.

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