The basics Our UV Liner Pens are vegan- smudge-proof, waterproof and  long-lasting.  The benefits Available in nine fabulous neon colors – purple, green, hot pink, soft pink, white, yellow, red, orange and teal blue. The uses They are designed for either a pencil-thin application or a thick application. The choice is yours! The bottom line We are also introducing our new Abyss Black Liner Pen for a precision black, bold liner look. Like the neon collection, it is a vegan formulation that is waterproof, long-wearing, and smudge-proof.