Hero Arts Neon Ink Pad: * These neon ink pads come in a variety of colors (each sold separately) with a raised pad surface for any stamp size and are sure to draw attention to your work * Ink is fade resistant on glossy paper; waterproof for watercolors and markers; and dries permanently and quickly on most papers * Conforms to ASTM D4236 and EN-71 * Acid free and archival * Made in USA