~Round tip. ~Writing line width from 2 to 4 mm. ~Pigment waterproof ink with high resistance to atmospheric influences and water. ~For highlighting, drawing and decoration on smooth, porous, light and dark, transparent surfaces. ~Lacquer finish/varnishing effect. Visibility of ink colour when heated at the range of 400 to 1000 С depending on colour. ~Press the nib against a flat surface and shake well before use.