Add a unique “pop” of color to your writing world. Sparkling iridescent ink changes color when writing on black or white paper to make your writing and artwork stand out. Latex-free grip for comfortable writing and drawing. 33test33 Add a unique “pop” of color to your writing world. Sparkling iridescent ink changes color when writing on black or white paper to make your writing and artwork stand out. Latex-free grip for comfortable writing and drawing.