This is the finest of the Makò threads from Aurifil (100% cotton). The long staple Makò cotton is very smooth, and strong. It is the favourite thread for detailed machine quilting. This thread is reccomended for fine detailed machine quilting, to prevent bulky thread build up when you are stitching micro stipple. It is also perfect for invisible ditch stitching, as the thread disappears into the valley between the seams. 1300mt. bobbins.