This 100% Polyester Gutermann All Purpose Thread is a great thread for all basic sewing needs. Whether sewing by hand or by machine, Gutermann's medium-weight Sew-All thread works wonders in synthetic and blended fabrics. Choose from 98 vibrant colors to best suit your next sewing or quilting project. This 100% polyester thread is machine washable and dryable. Gutermann is known for being a premium thread brand that's virtually lint-free. Gutermann's Sew-All Thread works wonders on buttons, ornamental stitches, decorative seams, overlock, and safety seams. It combines the excellent sewing properties of silk with the strength and durability of polyester. For best results, it's recommended that you use size 70 to 90 needles.