Retro 1951 Rollerball Pen Capless RefillWith a smooth and consistent ink flow, our short capless rollerball refills provide an effortless writing experience, making them perfect for all your writing needs. Whether you're jotting down thoughts or writing a letter, our black ink rollerball refill will deliver reliable and high quality performance every time. Keep your Retro 51 Tornado pen writing smoothly and effortlessly!