🖋️ An ink pen is a writing instrument that utilizes a reservoir of ink to produce marks on paper or other surfaces. It typically consists of a narrow tube or barrel filled with ink, which is transferred onto the writing surface through a fine metal or synthetic nib. The ink flows smoothly and evenly, allowing for precise and controlled writing. Ink pens are commonly used for various purposes such as writing, drawing, sketching, and signing documents. They come in a wide range of designs, colors, and tip sizes, catering to different preferences and writing styles.