Threadart 20 Colors of Perle Cotton Set A - 75yds - Size 8 This set includes one spool of each of our most popular 20 colors of perle cotton thread. Includes black and white On convenient spools as pictured. Size 8. 75yds per spool Perle (Pearl) cotton is a heavy weight thread Use for quilting, embroidery, cross stitch, crochet, and more This thread has a beautiful lustrous finish and is 100% mercerized cotton