The Mitsubishi Uni-ball Signo UM-151 is a neutral gel pen that boasts a precise 0.38mm writing line. Known for its smooth writing and vivid black ink, it is widely used for office and academic purposes. With a transparent body and a rubber grip, it minimizes fatigue during long-term use. As a finished imported product from Japan, its clean design makes it a steady-selling writing instrument consistently chosen for corporate events or academy promotional items.