Mettler Silk-Finish Cotton is perfect for all your quilting, sewing and long-arm cotton needs. The mercerization of all Mettler cottons creates that beautiful silk-like sheen, high breaking resistance, color fastness and optimal elongation. Use Mettler’s SILK-FINISH COTTON 50 with confidence to create your heirloom quilts, custom garments and creative projects. Tex 32. Manufacturer recommends needle size 80-90. 16yards/150 meters per spool. Handy end cap for securing thread end.