REEVES-Letraset Markers. Aqua Markers used water based pigment ink that are light fast and give excellent color longevity. They have the advantage of being water soluble so they can easily be blended; even when dried; they give the effect of watercolor paint. The markers have a fine tip on one end and a medium nib on the other end. This package contains six twin tip markers. Colors include: Raspberry; Tangerine; Golden Brown; Spring Green; Mediterranean and Mauve. Conforms to ASTM D 4236. Imported.