This adirondack earthtones pigment reinker is non-toxic and acid-free. Adirondack pigment inks give opaque coverage that air dries on matte paper surfaces. They are embossable and can be heat set on gloss paper, vellum, shrink plastic, metal and glass. Re-saturate them with their companion dye-based refills that are the same fade resistant and quick drying ink. Easy clean up. Comes in 0.5-ounce plastic squeeze bottle with a writer tip. Available in mushroom color. Made in USA.