Product Features: Elevate your creative projects with our black fine line waterproof ink set, designed to deliver impeccable precision and detail. The fade-resistant and waterproof features guarantee that your masterpieces will endure over time, ensuring cherished artworks and documents remain as vibrant as the day they were created. Our marker set offers a range of nib sizes from 0.2mm to 3.0mm, catering to diverse artistic requirements. Whether you need ultra-fine lines or bolder strokes, this set has you covered, making it a versatile addition to any artist's toolkit. Utilizing a no-bleed, no-smear ink formula, our art drawing pens provide crisp, clean lines every time. This ensures your work remains pristine, free from accidental smudging or ink bleed-through, even on more delicate paper surfaces. Included in a stylish plastic storage box, our black ink pens not only offer exceptional performance but also convenience. They make an excellent gift for anyone passionate about art, design, or crafting, providing them with tools that ensure a seamless and enjoyable drawing experience. Specifications: Name: Art Pen Color: Black Packing List: 6/12/16 black micro pens Note: 1. Before using it for watercolor projects, please make sure the ink is completely dry. Thicker nibs take longer to dry completely. 2. Please cap these pens when not in use to prevent the nib from drying out. 3. If you forget to cover the cap and cause the nib to dry out, don't worry! You can wet the tip with alcohol or water, then draw a few more lines and it can be used normally.