This ballpoint pen is equipped with a Bren system that controls the amount of vibrating that occurs when writing. Made with a material that controls rattling, or vibration, it offers a noise free design and achieves a high level of airtightness by eliminating gaps between parts such as the metal tip. Measures 0.5 mm. Comes in light blue and contains black ink. Made in Japan. Ballpoint Pen 0.5mm Black Zebra