NYX Professional Mechanical Eye Liner Pencil –Bronze NYX Mechanical Eyeliner is available in a variety of shades. With its intense pigmentation this eye liner will give you a bold colour for an amazing look. NYX Eyeliner is a twist up pencil so no need for sharpening and your pencil is always ready to go!! This product covers like a liquid eyeliner, with a creamy formula it is long lasting. This smudge proof eyeliner glides on effortlessly.