Sulky Cotton Thread Petites is premier quality, long staple, highly mercerized Egyptian cotton which is 40% thicker than 30wt. Ideal for quilting, thread lace, bobbin work, thread painting, red work and more. This thread has a matte finish, can be used in machine or hand sewing and can be either machine washed or dry cleaned. Remember that 1 strand of 12wt. cotton equals 2 strands of the typical floss and a 50-yard spool equal 2 skeins of floss.