This adirondack bright pigment inkpad is non toxic and acid free. 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. Clean hands and with water based stamp cleaner. Comes in tight fitted and stackable case. Available in clover color. Made in USA.