PEN

A pen is a writing instrument designed to apply ink to a surface, typically paper. It comes in various types, including ballpoint, rollerball, fountain, and gel pens, each offering different writing experiences and ink types. Pens can vary in design, from simple and functional to luxurious and ornate, and are made from materials such as plastic, metal, or wood. They often have features like retractable tips, ergonomic grips, and refillable cartridges, making them both practical and customizable for everyday writing tasks or special occasions.