Product Review
[Smooth writing taste of Uni-ball, gel ink] Knock-type gel ink ballpoint pen, is a core replacement of Uni-ball. It has achieved a smooth writing feeling by the excellent durability and light fastness excellent gel ink. Because of the pigment ink, Nijimazu in water, hardly faded drawing, also will remain vivid drawn lines forever. Compatible products: Yuniboru Uni-ball RT1 UMN-155-28 Product Name: Mitsubishi Pencil Co., Ltd. gel ink ballpoint pen core replacement 0.28mm black 10 bottles UMR82.24