This waterproof liquid eyeliner highlights your eyes with intense color and a luminous finish.The semi-flexible applicator provides high precision or wider lines to match your mood. Aqua XL Ink Liner is extra-long-lasting and water-resistant to stay sharp all day long.How is it used?Aqua XL Ink Liner is a versatile waterproof eye liner. It is perfect to create a gradient liner effect. The brightest colors can be used as a double liner to highlight the black liner.