Suitable for use with all fabrics whether by hand or machine, and for many applications - seams, overlocking, button holes, fine ornamental and decorative stitching. Sew-All combines the excellent sewing properties of silk with the strength and durability of polyester. Guaranteed no-twist and lint free. A soft and supple thread, light resistant and colour-fast and in an extensive range of brilliant colours with a silk-like gloss. Recommended machine needle size: Universal 70-90. 100% polyester.