It contains no waxes, dyes or harmful chemicals, 100% water soluble.Marks can be removed with the brush or damp cloth. High quality pencil cores with exquisite craftsmanship, easy for marking and not easy to bend and break off. It glides smoothly and evenly across fabric without crumbling. Can be used instead of drawing a picture during sewing, not dirty hands. Leaves fine visible lines to guide your quilting stitches. We strive to provide you with the highest quality product and the best customer experience, if you're not entirely satisfied, please just feel free to contact us at any time.