Ink Potion no. 9 is Tsukineko's ink blending solution; it is compatible with any water-based ink and resists curling paper when dry. Spray on projects to encourage migration of any water-based ink, spray on inked stamp for watercolor effects, or mix with water-based ink and then spray on project for wonderful background effects. Ink Potion no. 9 can also be used with Tsukineko's Fantastix Coloring Tools to encourage blending. Available in a 2 oz. spray bottle.