Kajal and brow pencils, as well as lip liners, are often difficult to sharpen with conventional pencil sharpeners, as they are designed for the toughest leads of colored pencils. The benecos double pencil sharpener fits perfectly with benecos pencil refills. With its 2 different hole diameters, slightly thicker pens can also be sharpened. If the sharpener is dirty, you can clean it with the built-in cleaning spatula. It is recommended to insert the pencil to be sharpened into the correct hole according to the thickness and turn to sharpen.