Tsukineko StazOn Stamp Pads are a solvent-based ink pad 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. Includes 1 pad and a 1/2 ounce bottle of ink to refill your pad. Porous surfaces such as uncoated paper, leather, wood and fabric may not result in fully metallic effects. Porous surfaces such as leather, wood and fabric may not result in fully opaque impressions. Acid-free and water soluble. Approximately 3 3/4 x 2 1/2 inch. Opaque Cotton White.