Buy MAC Eyeliners - MAC Fluidline Eye Liner Gel Blacktrack. How-to-Use: If using an eye pencil, sharpen for optimal use. For both an eye pencil and liquid eye liner, close eyelid and slightly pull eye outward. Begin lining at base of the inner eye and follow to the outer eyelid, keeping the liner as close to the eyelashes as possible. Lines up in a rich array of colours and finishes. Long wearing, smudge proof. Goes on foolproof with a brush in an easy dip and stroke action. Provides the precision of a liquid liner with a silkier, softer finish.