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. These pencils are available in various shades to match different hair colors and skin tones, making it easier to achieve a natural look. Most eyebrow pencils have a waxy texture that helps them adhere to the skin and hair. Some also feature a spoolie brush on the opposite end, which can be used to blend the product for a softer finish. They are popular among those looking to fill in sparse areas or create a more polished appearance.