【60 Vivid Colors】 This fineliner pen set contains 60 unique bright colors, and each pen tip has a diameter of 0.4mm. The rich color selection is suitable for line and detail drawing, programming, architectural design, sketching, writing, signing, diaries, calendars, agendas, notebooks, planners, adult coloring books, etc., to meet various creative needs. 【0.4mm Ultra-fine Pen Tip】 Equipped with a 0.4mm ultra-fine metal-plated tip, it provides precision and durability, making it ideal for fine work such as drawing with rulers and stencils, fine artist's ink drawing, and completing small and intricate patterns. 【Safe and Non-toxic Ink】 It uses water-based ink, which dries quickly and almost does not bleed through the paper except for extremely thin ones. The non-toxic, pH-balanced fiber tip design allows these fineliners to create delicate lines and intense watercolor effects. The barrel and cap are made of PP material to extend the service life. 【Excellent Art Supplies for Everyone】The fineliner pen set is a perfect gift for children, students, artists and friends who love art. Please remember to replace the pen cap after use to avoid drying out and clogging. We are committed to providing the best possible service, so please feel free to contact us if you have any questions or concerns. 【Exquisite Packaging】These fineliner pens come with a high-quality plastic storage box with quick-lock closure, which is convenient for carrying and storing, and can be easily put into a backpack. It is very convenient to use at school, travel, home and office.