Writing with the Pentel 2S Pen\/Mechanical Pencil combines the convenience of a mechanical pencil and the smoothness of a gel-based ink pen. With a sleek barrel, this pencil hybrid is both functional and stylish. Features a 0.5 mm lead size for the mechanical pencil component and gel-based ink in black and red colors for the ballpoint pen. This allows easy switching between writing with a pen or pencil. The black and red ink colors provide options for different writing or highlighting needs. The barrel is designed to ensure a comfortable grip. The compact size of the pen makes it portable and easy to carry.