Uni-Ball Signo Snap Cap Gel Ink Ballpoint Pen, 0.38Mm Extra Fine Point, Light

The ink transforms into a low-viscosity liquid as the ball rotates, allowing for effortless, fluid writing. Smooth and Smudge-Free Writing: The gel ink transforms into a low-viscosity liquid as the ball rotates, providing a smooth, effortless writing experience that quickly solidifies on paper to prevent smudging.