Conic tipped fiberpens with a strong and resistant tip. The tip can be used to draw fine lines (0,75mm) or thicker lines up to 3mm. Their tips make them ideal for both smaller drawings and larger works such as mural posters. The ink used is water-based and produce bright colors that are easy to apply and are mixable. For ages 5 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs.