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 will achieve a beautiful stained glass appearance due to the transparent nature of the ink. Details:Available in multiple colors2.66" x 3.9" ink pad sizeSolvent inkMild smell and safe to useAcid-free and water soluble for easy clean upMulti-surface