• It is a water-based pigment ink that is non-toxic, lightfast, and waterproof. • Unlike alcohol-based marker ink, the ink does not bleed. • With a newly developed pen core, you can write fine letters firmly. • Ink Color: Black, Red, Blue, Green, Orange, Violet, Pink, White, Sky Blue, Yellow, Shiny Yellow, Shiny Orange, Shiny Emerald, Shiny Sky Blue, Shiny Pale Pink, Shiny Baby Pink, Shiny Rose Pink, Shiny Blue, Pastel Yellow, Pastel Orange, Pastel Green, Pastel Purple, Pastel Pink, Pastel Blue. • With original vinyl pen case! • Imported from USA. These opaques felt tip markers can write on a variety of surfaces including plastic, metal, wood, glass, plaster, canvas and more. Paint can be scraped off from nonporous surfaces like glass, etc. but will adhere permanently to porous surfaces such as wood, paper, etc. Water-based pigment ink is non-toxic, lightfast and waterproof. The ink won't bleed through paper (unlike alcohol-based markers) and is excellent for vibrant signs and craft work.