Remarkable embossing gel ink pen writes, then dries to a 3-dimensional, opaque, matte, pastel-color line. 1.0mm ball diameter for a bold .7mm line effect.  Odorless, water-based, gel ink formula.  Waterproof on many surfaces. AP nontoxic.  For best results, use on non-porous, clean, smooth, surfaces. 10 Opaque Pastel 3-D colors.