This polyester all purpose thread guarantees optimal sewing without fiber lint and seam crimping with the finest needles. Strong and durable seams result from the high tear and abrasion resistance of this thread. Perfect for use on natural and synthetic fibers.Gutermann Sew-All Polyester Raspberry Thread, 110 Yd.Gutermann Sew-All Polyester Raspberry Thread is ideal for all basic sewing projects It is suitable for hand and machine sewing and ideal for lock and step seams, overlock and safety seams, buttonholes and sewing on buttons, ornamental stitches and decorative seams. Recommended needle size NM 100-120 / US 16-19.