So fine it virtually disappears into the fabric. It has quickly become the leader for applique, basting and fine heirloom sewing.
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YLI Invisible Thread
Size .004mm. thread. Very fine and soft, this monofilament thread may make you change your mind about invisible threads forever. Use for machine quilting where you don't want a colour to detract from the design. Use a Jeans 70/10 needle in your machine.