Description The Uni-ball Signo Blue (UM-120) is world-renowned for its exceptional smoothness and vibrant color. This gel rollerball features a sturdy 0.7mm tungsten carbide ball that produces consistent, skip-free lines. It is powered by uni-ball’s signature Super Ink, making your writing waterproof, fade-resistant, and tamper-proof—perfect for official documents and long study sessions. With its comfortable grip and transparent barrel for easy ink monitoring, it’s the ultimate choice for students and professionals across Pakistan.
