This great set of 12 metallic shiny gel pens are intense with water-based gel ink which is perfect for creative writing and to use to add details to any crafting project and perfect to use on black or white paper. The Gelly Roll ink is designed not to feather, smear, or bleed through most paper, fade resistant and waterproof, these are suitable for handwriting, drawing, colouring, decoration and paper crafts. These pens will give a deep gloss effect on white, black and glossy paper.