Colorful pen TXLOVE Fineliner Color Pen Set, 0.38mm Colored Fine Liner Sketch Drawing Pen, Porous Fine Point Markers Perfect for Coloring Book and Bullet Journal Art Projects,10 Assorted Colors Fineliner 10 Pack in BRILLIANT COLORS, 0.38 mm Fine Point, Assorted, DRY SAFE, Minimal Bleed Thru/ Acid-free Ink. Fineliner with superfine, metal-clad tip and outstanding performance in all areas of manga, graphic, design and illustration, easy and comfortable to write. Especially used by the designers of Architecutre, AD, Comic (Manga) and Animation for drawing lines and signing Line width approx. 0.38 mm. Water-based ink. Washes out of many textiles. TXLOVE Color Pen Set, Set of 10 Assorted Colors. Packaged in a soft transparent vinyl bag. Remind: If you are coloring on thin paper,you can put an extra sheet of blank paper between your coloring sheets and that works nicely to prevent any bleed thru.Because markers and color pens bleed thru their paper in general. Just In Case. Note: Under the age of 3 years old childrens should not use free when the body in the tutorials.