The Original Chartpak AD Marker, Tri-Nib, Grass Green, 1 Each (P122) Professional, xylene-based marker for art and design Tri-nib Permanent marker blends and transfers on paper, acrylic, Ceramic, egg shell and more One of 130 rich, vibrant colors in the collection that is perfect for blending and shading, and won't streak or feather Use with colorless blender (#p-o) to create unique colors, transfer images and produce watercolor-like effects with colored Pencil, graphite and charcoal Non-toxic, conforms to ASTM D 4236 and made in USA