Experience the next stage of ink technology innovation with uniONE Retractable Gel Pens. The revolutionary gel ink is specially formulated with large pigments that do not absorb into the paper. This results in writing and drawing that is darker, brighter and ultra vivid. Quick drying gel pens resist smudging, smearing and bleeding, making them ideal for crisp and easy to read notes and assignments. A 0.7 mm medium tip strikes the perfect balance between bold and detailed lines. The sleek white barrel with integrated anti-slip grip makes this pen a stylish writing tool. Additionally, the functional wire clip indicates the gel ink color, as well as opens wide for easy attachment to papers, notebooks or folders. uni-ballĀ® uniONE gel ink delivers superior writing performance whether at school, at home or at work. Business Ink-Color Assortment. Pen Sub-Brand & Product Family: uniONE; Pen Type: Gel Pen; Pen Style: Retractable; Pen Tip Type: Conical.