Yarns for needlepoint, cross-stitch, knitting, and crochet , made in Switzerland of 50% silk and 50% Merino wool. SILK & IVORY® may be used on #13, #14, #16, or #18 canvas, and are available in 244 colors, with many more to come. One skein contains 28.8 yards and covers approximately: 20 square inches on #13 canvas 19 square inches on #14 canvas 17 square inches on #16 canvas 15 square inches on #18 canvas Please note that these figures are estimates. Very much depends on personal stitching characteristics. As with any fiber, dye-lots change and are never precisely the same as another dye-lot of the same color.