Pigma Sensei pens were designed specifically for artists working in comic and manga styles! They contain patented Pigma ink: pigmented, archival, smear and feather-proof, water and fade-resistant, non-bleeding, non-toxic – in a word, superb! The Sensei range includes 4 tip sizes for virtually any type of line drawing from high detail to graphic and expressive. The 0.3mm Ultra-Fine Tip is excellent for detailing areas like faces, the 0.4mm Durable Plastic Tip is great for outlines, the 0.6mm Bullet Fiber Tip is ideal for lettering, and the large 1.0mm Bold Fiber Tip is perfect for heavy lines that add impact and drama. Altogether the entire Sensei range works harmoniously to help you create manga and comic artworks both meticulous and mobile!