Rigid chisel tip for crisp lines that wont bleed and blur Tough, resilient tip for long-lasting performance. Continue to write crisp, clear lines for the life of the pen! Long-lasting tip is made of quality felt, secured into the marker with a metal pin, so it doesnt lose its shape under pressure. Smudge-resistant for crisp, clear lines. Marks remain as crisp and legible as when you first wrote them. Color-rich, nontoxic ink dries quickly for extra convenience. Permanent ink formula is fade- and water-resistant . Marks on most surfaces including wood, metal, plastic, glass and boxes. Great for archival writing, wont fade over time.