Silky, smooth, and available in an array of tempting colors, these Perle cotton thread sets are the perfect way to embellish your projects! Each 100% Egyptian cotton spool is mercerized for strength, is colorfast, and shrink-proof. The high-quality thread is perfect for embroidery, applique, sashiko, and more. 10 gram balls, color reference numbers: 1068, 1906, 2720, 3324, 4323, 7644. Presencia uses a Z (left) twist, the most common for use in sewing machines. The direction and balance of the twist are important to prevent thread from looping and knotting.