Sulky 60 Wt. PolyLite (polyester) thread creates delicate decorative stitches and crisp readable lettering. Sulky PolyLite thread looks and feels like silk but it is stronger and less expensive. You will love it for micro-stippling and fine detail quilting. It is ideal in the bobbin for any decorative project where you want to match the bobbin thread to the top thread because the underside will be visible. Recommended Needle Size: 10/70 or 11/75.