DMC #939 Very Dark Navy Blue 6-strand cotton embroidery floss is a single 8 m (8.7 yd) pull skein for cross-stitch, hand embroidery, needlepoint, monogramming and other needlework. Made from 100% long-staple cotton that is double mercerized for a smooth sheen, the size 25 thread separates into six strands so stitch thickness can be adjusted. Colorfast, fade-resistant dye helps finished projects keep their colour when washed according to fabric and pattern instructions.