The Permanent Marker 4pc Set 1-4mm Assorted Colors with Instant-White includes four markers in a range of vibrant colors, each with a versatile 1-4mm tip for precise or broad marking. These markers are designed for permanent use on a variety of surfaces, such as paper, plastic, metal, and wood. The Instant-White feature refers to a built-in white-out or correction fluid, allowing you to quickly correct mistakes or add highlights to your work. Ideal for labeling, crafting, and general marking, this set offers both functionality and convenience.