- Non-Toxic - Archival and Acid Free - The only pigment ink that dries naturally on vellum and glossy paper -It works great on leather, polymer clay, mica, and acetate. - These little gems are very convient to use - You can have all the colors for a fraction of the price of full sized ink pads! - Easy to re-ink, just like the big pads, re-inkers available in all the colors