1、 0.4mm Fiber Tip: Affluent writing, vivid and fast drying, multi color options, bright colors. The writing length is 200‑300m, which can meet all kinds of painting and writing needs. 2、Affluent Inking: Produces very durable opaque and glossy surfaces on light and dark surfaces, fine line pen for journaling, planning, writing, calendars, art projects. The nib will not fray, split and the pen will not penetrate. 3、Vibrant Colors: 48 Color Hook Pens, Great for Diary Pens, Planning Pens, Journal Pens, Drawing Lines and Details, Writing, Markers, Coloring Books for Adults, Art Projects, Teacher Pens, School Pens, Ballpoint Pens, School Office Supplies, Planning Accessories . 4、: Color Thin Line Pen Fine Tip Markers Nontoxic, Water Based, Acid Free, Smudge Free, Dry Safe, Minimize Bleeding. Each pen has a safety hat that matches the color pen to ensure good quality nibs. Pens for adults and children. 5、Features: The color is positive, full, bright, the color of the pen head corresponds to the color of the end of the pen, and it is easy to find. Fiber nib, wear resistant and lint free, ink is uniform, and ink is affluent; water soluble dye ink, vivid and bright, not easy to fade.