StazOn is a solvent-based ink designed for decoration on non-porous surfaces such as glass, metal, shrink plastic, cellophane, aluminum foil, leather and acrylic. You'll achieve a beautiful "stained glass" appearance, due to the transparent nature of the ink. Mild smell, safe to use, and no need to re-ink the pad before each use. Acid-free and water soluble. These pads are approximately 3 3/4"x 2 5/8"x 5/8" and the labels match the color of the ink. Opaque Mellow Mint - Includes 1 pad and a 1/2 ounce bottle of ink to refill your pad. Porous surfaces such as leather, wood and fabric may not result in fully opaque impressions. StazOn Opaque Ink Pads -Mellow Mint Ink Set - Tsukineko