35/2: This weight is good for most general sewing such as button holes, eyelets, top stitching and hand sewing medium to coarser linens and wools. It comes in about 145 yd. or 133 m. spools.
80/3:Linen thread of this weight is good for hand sewing and comes in 50 m (about 54 yd) spools.
100/3: Very fine linen thread is good for hand sewing handkerchief-weight linen and for making bobbin lace. It comes in 50 m (about 54 yd) spools.