The precision gliding ceramic ballpoint pen ensures smooth movement across fabrics without snagging or damaging the fabric. The 0.8mm tip provides a fine line that does not bleed and allows for even distribution of ink to the last drop. The ink is pale blue and intensifies after a few moments. The lines are easily removed with the Sewline Aqua eraser or with water. Markings must not be ironed. Wonderful for embroidery and marking on light colored fabrics.