UNI Uniball One Retractable Gel Pen UMN-S-05, 0.5mm (Black)

a popular gel pen series known for its innovative, dark, pigment-based ink that sits on top of paper for vibrant color, quick drying, and water resistance, making text stand out and aiding memory for students.
Key features include a sleek barrel, rubber grip, smooth retractable mechanism, and a stylish open wire clip