Sulky Ultra Solvy Embroidery Stabilizer is 4X as heavy and thick as the original Solvy with the firmness that is required when creating stand-alone thread lace, cutwork, battenberg lace, digitized lace, hoopless machine embroidery or free-motion embroidery. Use our Stabilizer Selection Tool to find the correct combination of backing and topping for the specific technique and fabric on which you are sewing.