2 Spools of Baby Pink 2423 - 1422yds each 100% Mercerized Long Staple Egyptian Cotton Premium quilt shop quality thread - Cotton Mako 50wt For machine embroidery, quilting and Serging The finest of the Mako threads - Very smooth and Very strong Large spool (1422 yard) cotton thread by Aurifil. Long staple Egyptian cotton is the best in the world! The 50 weight is the finest of the Mako threads and is very smooth and strong. 100% mercerized cotton.