40 wt. 3-ply Egyptian-grown extra-long staple cotton thread. Designed for quilting and decorative stitching. King Tut is one of nature's finest threads. With low lint and high strength, King Tut is the top cotton thread choice for visible stitches. Available in over 100 color selections in both solid variegated options. All variegated color blends are precision dyed with one-inch color change intervals.