The MadamSew Chalk Marker is a temporary marker with a toothed metal wheel that produces fine lines of chalk on fabrics. These fabric markers are always sharp and draw both straight and curvy lines. No need to sharpen the tip. The chalk doesn’t fade or brush off unwantedly, but is easy to remove. The chalk marker’s wheel rolls smoothly over cotton, knit fabrics, jersey, synthetic fibers, suede, leather... (Don’t use them on silk and nylon fabrics!) * Very fine and precise chalk lines on many different types of fabric * Dosing wheel technology: a toothed metal wheel at the tip distributes the chalk evenly as you roll it along * Always sharp * Reliable chalk lines, that stay put while sewing * Ergonomic design; easy to hold because of the recessed tip and the overall shape of the pen * Has a cap; protects the wheel and makes sure the chalk stays in the pen * Refillable; chalk marker refills are available in our sewing and quilting store The powdered chalk comes in 3 colors: red, yellow and white.