White chalk mechanical pencil from Sewline. Use it to mark embroidery designs or visible mending stitch patterns on dark fabrics. The chalk marking isn’t super saturated but it is good enough. The main benefit is the super fine tip of this chalk pencil. It makes it possible to make marks that just can’t be done with other styles of chalk markers. White Chalk Pencil Sewline Tailor’s Mechanical 1.3mm Click Pencil For Visible Mending Or Embroidery Transfer