LETRASET-ProMarker Twin Tip Markers: Manga Expansion Pack #2. Ideal for crafting; design; illustration; rubber stamping and so much more; ProMarkers allow you to easily overlay and blend colors to create shade and tone. The twin tips offer a fine bullet tip for details and a wider tip for large areas. They have alcohol-based dye-color that is permanent; quick drying; and non-toxic. This package contains twelve markers and one blender marker. Conforms to ASTM D4236. Imported.