Gum erasers are a type of eraser made from a soft, rubbery material that resembles gum. They are commonly used for removing pencil marks from paper without tearing it. Their pliable texture allows them to conform to the surface, making them effective for precise erasing. These erasers are often favored by artists and students because they leave minimal residue and can be easily shaped. Unlike harder erasers, gum erasers can be kneaded and molded, which helps in erasing fine details. They are available in various shapes and sizes, making them versatile for different writing and drawing tasks.