This liquid eyeliner pen has a unique easy glide tip and provides an intense black pigment like no other liner in the market. The waterproof formula assures that the line remains throughout the day. Ultra-intense and to the blackest black color, these newly formulated eyeliners contain highly concentrated pigments and impart a long-lasting waterproof hold that stays put all day. This ultra-black, waterproof eyeliner is long lasting and will see you through your craziest days with 12-hour hold.