Mettler Metrosene All Purpose Thread is ideal for all kinds of fabrics, including cotton, synthetics, mixed fabrics, linen or silk. It produces a beautiful and durable seam, whether sewn by hand or machine. Colors include #4000 Black, #2000 White, #0778 Muslin, #0975 Apple Seed, #0503 Cardinal, #1140 Sterling, #0271 Winter Frost and #0825 Navy. 100% Mercerized Polyester. Size 40 (Tex 30). 3 ply. 164 yard per spool. 8 pc.