Eyebrow pencils are cosmetic tools used to enhance and define the shape of eyebrows. They typically come in a pencil form, allowing for precise application. Available in various shades, they help fill in sparse areas, create a fuller look, and match the natural color of the eyebrows. Most eyebrow pencils have a waxy texture that allows for easy blending and long-lasting wear. Some also feature a spoolie brush on the opposite end, which helps to groom and blend the product for a more natural appearance. They are popular among makeup enthusiasts for their versatility and ease of use.