Milan by Planet Earth Fibers 50% Silk, 50% Wool Skein: 30 Yards Single strand compatible on 13 count canvas. If you are arthritic or have carpal tunnel syndrome this is the fiber for you! It stitches so smoothly and is very easy on your hands. I personally am able to stitch 3 times longer when I stitch with essentials than I do with any other fiber. Please be advised if you are going to stitch silk on a belt, keychain, or dog collar that it is not waterproof and runs the risk of the color bleeding. I stitch silk on all of these, but just make sure that I do not put the product into situations where they will be drenched in water or sweat.