The Signo Rollerball Pen features a transparent plastic barrel that allows easy monitoring of ink levels, making it convenient for long-term use. The pen's smooth, quick-drying gel ink is fade-resistant, water-resistant, and tamper-proof, ensuring your writing remains clear and protected over time. With a 0.7mm tip that writes a precise 0.5mm line width, this pen is perfect for daily tasks at home, school, or the office. The retractable design prevents ink smudging, while the comfortable rubber grip ensures an ergonomic writing experience. Features and Benefits Ink is quick-drying, fade-resistant, water-resistant, and tamper-proof 0.7mm tip produces a clean 0.5mm line for precision writing Transparent plastic barrel allows users to monitor ink levels easily Retractable design prevents smudging and ensures convenience Ergonomic rubber grip provides comfort during extended writing Sturdy clip allows for secure attachment and on-the-go accessibility