• Multi drawing pens 10 unique nibs sizes to choose from. Includes 9 micro nib sizes: 00.2mm (005), 0.25mm (01), 0.3mm (02), 0.35mm (03), 0.4mm(04), 0.45mm (05), 0.5mm (06), 0.6mm (08), 1.0mm (10), 1 Soft Brush tip.• Offering a variety of sizes for your needs, these black fine tip markers are ideal for drawing and writing，Its needle tip works well for artists, writers, and illustrators alike.• Waterproof ink, black , non-refillable, non-toxic, odorless, archival quality, waterproof, and won’t smear, fade, bleed or skip. Work well with watercolor, markers and ink. Photocopy-safe—does not dissolve toner, Perfect for adult coloring and Bible journaling
