MUREN present New Colours Brush Pens offer a flexible brush tip and fine tip in one marker deal for fine art, illustrations, doodling, journaling, hand lettering and more. The ink is acid-free, non-toxic, blend able, odorless, and non-bleeding. PERFECT GIFT IDEA: Our colored markers are good for your everyday lettering, drawing, crafting, doodling, illustrations and fine art. So why not choose this craft supplies as a gift at Christmas, anniversaries, Valentines Day, graduations, birthdays. EASY TO COLOR: All brushes and fineliner work well with no skipping or ink flow issue. Especially, the nylon fiber brush tips would easily layer and mix different colors without worrying about smudges and blotches. 12UNIQUE COLORS: vibrant colors and Color coded pen holder easier to choose right color every time. Also every pen comes with water-based, vibrant rich ink which will arouse your artistic creativity Please feel free to contact seller for any product or order problem.