The Sewline Aqua Eraser Liquid is a fabric detergent containing ingredients to lift ceramic pencil marks from fabrics by adding a few drops to water. Always test on a sample piece of fabric before applying to your project. For use with the Aqua Eraser Pen, eQuilter product code UNSLIAQP. 'Sewline Liquid Eraser: Lift ceramic pencil marks from fabrics' by Sewline.