Tsukineko 2-Pack 8-Ml Spritzers Ink Potion Water-Based Blending Fluid Ink potion number 9 is a blending solution for all water-based inks; paper friendly, this solution encourages paper to remain flat as it dries; also, reduces "pilling" that occurs with use with water Uses include: dip a fantastix (or paint brush) into ink potion number 9 to blend watercolor pencils or crayons; Spray onto an (water based) inked stamp for water-color look; Spray glossy cardstock, drip dye ink, then spray again for migration Add ink from an inker into the bottle of Ink Potion number 9 and you've just created a custom color background spray. Why not blend two or more colors with ink potion number 9 for an even more unique spray? Also available in 8-ounce refill, 2-ounce spray and single unit of 8-ml spritzer Measures 1.342 by 0.675 by 5-inch