Uni-ball Signo RT Retractable Gel Pen 0.5mm (UMN-105)

  Body Material Plastic Clip Material Plastic Clippable Yes Tip Material Metal Tip Size 0.5 mm Tip Type Conical Water-Resistant Waterproof Diameter - Grip 9.6 mm Diameter - Max 10.6 mm Length - Retracted 13.9 cm Grip Material Rubber Ink Characteristics Acid-Free, Archival Quality, Fade-Resistant Ink Composition Pigment-Based Ink Refillable Yes Uni-ball Signo RT Retractable Gel Pen - 0.5mm, with its water-based pigment gel ink, features a retractable 0.5 mm gel ink rollerball pen, rubber grip, and a steel point for strength. The tip is designed to reduce friction against the paper, resulting in smooth writing experience. Very practical and affordable!