Wool Essentials by Dolores Smith (Timeworn Toolbox Designs) thread kit of 10 small (54 yard) spools of 12 Weight 100% cotton Mako thread from Aurifil. Includes the following colors: 8021, 8320, 8310, 8401, 8610, 8615, 8142, 8265, 8940, 8951. Long staple Egyptian cotton is the best in the world! The 12 weight is a decorative thread and is the thickest thread in the Mako range. It is ideal when a very defined machine quilting stitch is desired.