The Uni-Ball UB-157 Eye Roller Fine is a high-quality gel rollerball pen that provides a comfortable and smooth writing experience. With its fine 0.4 mm tip, it enables precise writing and drawing with crisp lines. The pen features long-lasting, vibrant blue ink that is waterproof and indelible, ensuring your writing and drawings remain legible over time. Thanks to the innovative "Uni-Flow System," the ink is always distributed evenly and continuously across the paper without scratching or bleeding. The pen's ergonomic design allows for comfortable writing, even over extended periods, without hand fatigue. The pen also features a practical clip that allows it to be securely attached to a pocket or notebook. Whether for everyday use in the office, at school, or for creative projects at home, the Uni-Ball UB-157 Eye Roller Fine is a reliable companion for all your writing needs. Treat yourself to the pleasure of writing with this high-quality gel rollerball pen and see for yourself its quality and durability.