From the manufacturer:

Bed Head Make-Up Markers Liquid Eye Liner comes in three smudge-resistant colors with the perfect control tip. You may choose from Black, Brown and Blue, there must be one colour that will best fit with your desired look! The Make-Up Marker in Black is a liquid eye liner that will give you the desired effect for dazzlingly defined and sharp-looking eyes. It dries quickly on your skin and could be easily applied with the perfect control tip brush along the base of your luscious lashes.