I use this Tim Holtz Distress Ink Tea Dye to give some color to the edges of my greeting cards.  The color is very subtle, which is nice because it gives a feel of aged look to my vintage greeting cards.  I compared this one to my old one I purchased years ago.  It is the same color number TIM 19510 TEA DYE.  The color of the ink pad cover is darker, but when I used the ink on paper, it is the same color.  I apply the ink with a makeup sponge.  It is acid free like all stamp pads.  This is an integral tool in my scrapbooking/card making supplies.