This Ink Refill, Mushroom is from Concord and 9th. This refill can be used to re-ink your Concord and 9th Mushroom ink pads and ink cubes (sold separately) so you always have a full ink pad. This ink is a premium dye ink that dries quickly. This ink is acid free. This ink can also be used for ink splatters and splotches. You can also use this ink to add color to modeling pastes, create watercolor effects, create mists, and add color to embellishments. This bottle contains 0.5 fluid ounces of ink.