Hero Arts Unicorn Pigment Reinker is a white opaque color offering fine detail, perfect for everyday stamping and crafting. This reinker works with our cubes or full-sized pads to replenish their vibrancy and make them ink stamps like new. Our reinkers also work well on their own right out of the bottle for painting, watercoloring or other inking techniques. 1/2 ounce of archival, acid-free ink.