Additional Details ------------------------------ Bullet point: Pack of 8 Drawing Pens in Black, with 1 pen in each Size Nib Sizes - 0.05MM, 0.1MM,0.2MM,0.3MM,0.4MM,0.5MM,0.6MM,0.7MM 1.Special Waterproof Pigment Based Ink makes it permanent and water proof on paper 2.Experience smooth, skip-free writing and crisp ink colors that leave consistent lettering and lines Fine point pen ideal for drawing and writing 5.Can be used by technical professionals, artists and crafters 6. No Smudge on any type of paper - total smudge proof Product description: Experience smooth, skip-free writing and crisp ink colors that leave consistent lettering and lines. Fine point pen ideal for drawing and writing Can be used by technical professionals, artists and crafters. No Smudge on any type of paper - total smudge proof