Finecolor Fineliner Color Pens set, Set of 48 Assorted Colors Pens 0.3mm with Plastic Pen Case/Water Base Ink Pens The Fineliner with super fine metal-clad clip. Ergonomic triangular barrel for fatigue-free working. Dry-safe, can be left uncapped up to 2 days without drying up. Our high quality fineliner pens let you draw precise lines, detailed line art and reach difficult areas. It goes on smoothly for crisp, flawless lettering and detail. This water-based ink is non-toxic, quick drying, and won't bleed through paper or card stock,give you a smooth writing practice Line width approx. 0.3 mm. Water-based ink. Fineliner with superfine, metal-clad tip and ergonomic triangular shape for relaxed and easy writing. Idea for drawing ,documenting,coloring, manga, graphic, design ,illustration ,journal, sketching, painting, drawing, writing, poster, note taking, diagramming, color coding diaries & planners, and producing original works of art 100% satifaction guarantee , money back if unhappy for any reason