Aurifil’s 100% Cotton 12wt/2ply thread comes in all 270 of our Cotton colours and is wound on a red spool. It is perfect for hand applique, hand embroidery, hand quilting, cross stitch, embellishment, handmade lace, machine applique, blanket stitch, machine embroidery (especially for designs that use a longer stitch length), machine art quilting, Sashiko, redwork, lower looper serging, and longarm quilting. Needle recommendations: 100/16 or 90/14 Topstitch Needle (40wt in the bobbin); 4.5 Longarm Needle (28wt in the bobbin). Tips: When using 12wt thread by machine, Aurifil recommends using a much thinner thread in the bobbin, like their 40wt. When using in a Longarm machine, quilt slowly, using a longer stitch and silicone conditioner where necessary.